MIL-PRF-32033, 24 July 2000 ,SUPERSEDING , VV-L-800C

May 11, 1983

PERFORMANCE SPECIFICATION

LUBRICATING OIL, GENERAL PURPOSE, PRESERVATIVE

(WATER-DISPLACING, LOW TEMPERATURE)

This specification is approved for use by all Departments and Agencies of the

Department of Defense.

1. SCOPE.

1.1 Scope. This specification covers one type and grade of water-displacing, preservative

lubricating oil, known hereinafter as "oil", for general purpose applications at low temperatures.

The oil can be applied by dipping, brushing, or by spraying from gas-pressurized cans. The oil is

identified by Military Symbol PL-S and NATO Code Number O-190.

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3 and 4 of this

specification. This section does not include documents cited in other sections of this specification

or recommended for additional information or as examples. While every effort has been made to

ensure the completeness of this list, document users are cautioned that they must meet all

specified requirements in documents cited in sections 3 and 4 of this specification, whether or not

they are listed.

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may

be of use in improving this document should be addressed to: U.S. Army Tank-automotive and

Armaments Command, ATTN: AMSTA-TR-D/210, Warren, MI 48397-5000, by using the

Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this

document or by letter.

AMSC N/A FSC 9150

DISTRIBUTION STATEMENT A. Approved for public release, distribution is unlimited.

MIL-PRF-32033

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2.2 Government documents.

2.2.1 Specifications, standards and handbooks. The following specifications, standards,

and handbooks form a part of this document to the extent specified herein. Unless otherwise

specified, the issue of these documents shall be those listed in that issue of the Department of

Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the

solicitation (see 6.2).

SPECIFICATIONS

DEPARTMENT OF DEFENSE

MIL-PRF-680 - Degreasing Solvent.

STANDARDS

FEDERAL

FED-STD-791 - Lubricants, Liquid Fuels, and Related Products;

Methods of Testing.

(Unless otherwise indicated, copies of the above specifications, standards, and handbooks

are available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D,

Philadelphia, PA 19111-5094.)

2.2.2 Other Government documents, drawings, and publications. The following other

Government document forms a part of this document to the extent specified herein. Unless

otherwise specified, the issues are those cited in the solicitation.

AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS (ACGIH)

Threshold Limit Values and Biological Indices

(Application for copies should be addressed to the American Conference of Governmental

Industrial Hygienists, 1330 Kemper Meadow Drive, Cincinnati, OH 45240 or website:

http://www.acgih.org)

DEPARTMENT OF LABOR (DOL)

OSHA 29 CFR 1910.1200 - Hazard Communication Interpretation Regarding

Lubricating Oils.

(Requests for copies of the Code of Federal Regulations (CFR) Guideline may be obtained

from the Superintendent of Documents, US Government Printing Office, Washington, DC 20402.)

MIL-PRF-32033

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NATIONAL TOXICOLOGY PROGRAM

- Annual Report on Carcinogens.

(Requests for copies should be addressed to the Annual Report on Carcinogens, National

Toxicology Program, PO Box 12233, Research Triangle Park, NC 27709.)

2.3 Non-Government publications. The following documents form a part of this

document to the extent specified herein. Unless otherwise specified, the issues of the documents

which are DoD adopted are those listed in the issue of the DODISS cited in the solicitation.

Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the

documents cited in the solicitation (see 6.2).

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM D91 - Precipitation Number of Lubricating Oils

(DoD Adopted).

ASTM D92 - Flash and Fire Points by Cleveland Open Cup

(DoD Adopted).

ASTM D97 - Pour Point of Petroleum Products (DoD Adopted).

ASTM D130 - Detection of Copper Corrosion from Petroleum

Products by the Copper Strip Tarnish Test

(DoD Adopted).

ASTM D445 - Kinematic Viscosity of Transparent and Opaque

Liquids (the Calculation of Dynamic Viscosity)

(DoD Adopted).

ASTM D972 - Evaporation Loss of Lubricating Greases and Oils

(DoD Adopted).

ASTM D974 - Acid and Base Number by Color-Indicator Titration

(DoD Adopted).

ASTM D1152 - Methanol (Methyl Alcohol).

ASTM D1500 - ASTM Color of Petroleum Products (ASTM Color

Scale) (DoD Adopted).

ASTM D1748 - Rust Protection by Metal Preservatives in the

Humidity Cabinet (DoD Adopted).

ASTM D4172 - Wear Preventive Characteristics of Lubricating Fluid

(Four-Ball Method) (DoD Adopted).

(Application for copies should be addressed to the American Society for Testing and

Materials, 100 Barr Harbor Drive, Conshohocken, PA 19428-2959.)

MIL-PRF-32033

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2.4 Order of precedence. In the event of a conflict between the text of this document and

the references cited herein, the text of this document takes precedence. Nothing in this document,

however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. REQUIREMENTS

3.1 Qualification. The lubricants furnished under this specification shall be products that

are authorized by the qualifying activity for listing on the applicable qualified products list (QPL)

before contract award (see 4.1.1, and 6.3). Any change in the formulation of a qualified product

will necessitate its requalification (see 6.9).

3.2 Materials. Unless otherwise specified herein, the chemical formula of the oil is the

prerogative of the contractor as long as all articles submitted to the Government fully meet the

operating, interface, support and ownership, and environmental requirements specified.

3.2.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered,

or environmentally preferable materials should be used to the maximum extent possible provided

that the material meets or exceeds the operational and maintenance requirements, and promotes

economically advantageous life cycle costs.

3.3 Operating requirements.

3.3.1 Kinematic viscosity. The kinematic viscosity of the oil shall be as specified in table I

(see 4.2.2.1).

TABLE I. Kinematic viscosity.

Kinematic viscosity, centistokes (cSt)

@ 40 degrees Celsius (ºC), minimum. 11

3.3.2 Corrosion protection (humidity cabinet). The oil shall protect metal to the extent that

no more than a combined total of three corrosion dots, none of which exceed 1 millimeter (mm) in

diameter, occur on the panels (see 4.2.2.2).

3.3.2.1 Removability. The oil shall leave no visual evidence of oil residue, stain or

discoloration on metals (see 4.2.2.2.1).

3.3.3 Water displacement and water stability. The oil, after storage in contact with water,

shall satisfactorily displace water as evidenced by the absence of rust, mottling, or surface stains

on the panels (see 4.2.2.3).

MIL-PRF-32033

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3.3.4 Corrosiveness (bimetallic couple). The oil shall protect metal to the extent that no

more than a combined total of three corrosion dots, none of which exceed 1 mm in diameter,

occur on the discs (see 4.2.2.4).

3.3.5 Wear. The oil shall lubricate the steel balls such that the average scar diameter on

the steel balls shall not exceed 1 mm (see 4.2.2.5).

3.4 Interface requirements.

3.4.1 Copper strip corrosion. The oil shall not tarnish the copper strip exceeding the

value of 2a on the ASTM Copper Strip Corrosion Standards (see 4.2.3.1).

3.4.2 Corrosiveness and oxidation stability (metal protection). The oil shall not produce

corrosion or oxidation effects on metal specimens greater than a weight gain or loss of

specimens. The oxidized oil shall exhibit no insoluble materials or gum when examined

(see 4.2.3.2).

more than a 5 percent (%) decrease or a 20% increase (see 4.2.3.2.1).

3.4.2.2 Neutralization number change. The neutralization number of the oxidized oil shall

not be more than 0.20 higher than the initial neutralization number of unoxidized oil

(see 4.2.3.2.2).

3.4.3 Color. The ASTM Color of the oil shall not be greater than 7.0 (see 4.2.3.3).

3.5 Support and ownership requirements.

3.5.1 Solid sediment/precipitation number. The oil shall generate not more than

0.05 milliliters (mL) mean total volume of sediment (see 4.2.4.1).

3.5.2 Toxicity. The oil shall have no adverse (injurious or damaging) effects on human

health when it is used as intended (see 6.1). Blenders, formulators, and suppliers shall follow the

guidelines of OSHA 29 CFR 1910.1200, the ACGIH Threshold Limit Values and Biological

Indices, and the most current National Toxicology Program’s Annual Report on Carcinogens

(see 4.2.4.2).

3.5.3 Product identification. Each unit container and its exterior package shall be labeled

as follows (see 4.2.4.3):

MIL-PRF-32033

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LUBRICATING OIL, GENERAL PURPOSE, PRESERVATIVE

WARNING!

*DO NOT USE THIS OIL IN THE PROCESSING OR HANDLING EQUIPMENT OR SURFACE THAT

MAY CONTACT FOOD!

*DO NOT ALLOW THE OIL TO CONTAMINATE FOODSTUFF!

*DO NOT USE THIS OIL IN ANY FUEL SYSTEM OR COMBUSTION CHAMBER OF ENGINES!

3.5.3.1 Warning for gas-pressurized cans. In addition to the marking specified in 3.5.3,

oil supplied in gas-pressurized cans shall be marked as follows:

WARNING!

CONTENTS UNDER PRESSURE

*KEEP AWAY FROM DIRECT SUNLIGHT, RADIATORS, STOVES, HOT WATER, OR OTHER HEAT

SOURCES!

*DO NOT PUNCTURE THIS CAN NOR PLACE IT IN AN INCINERATOR!

3.5.4 Fill (gas-pressurized cans only). The oil supplied in gas-pressurized cans shall have

a minimum net weight of 12.5 ounces (see 4.2.4.4).

3.6 Environmental requirements.

3.6.3 Evaporation loss. The maximum mass percent evaporation loss of the oil shall be

25% (see 4.2.5.3).

3.6.4 Low temperature stability. The oil shall show no evidence of gelling, crystallization,

hours (see 4.2.5.4).

3.6.5 Film characteristics/high temperature stability. The oil shall show no evidence of

(see 4.2.5.5).

MIL-PRF-32033

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4. VERIFICATION

4.1 Classification of inspections. The inspection requirements specified herein are

classified as follows:

a. Qualification inspection (see 4.1.1).

b. Conformance inspection (see 4.1.2).

4.1.1 Qualification inspection. Qualification inspection shall consist of tests for all of the

requirements specified in section 3 and may be conducted in any plant or laboratory approved by

the qualifying activity (see 6.3).

4.1.2 Conformance inspection. Conformance inspection consists of tests for all of the

requirements specified in section 3 and may be conducted in any plant or laboratory approved by

the qualifying activity.

4.2 Verification methods. Acceptable verification methods included in this section are

visual inspection, and measurement, sample tests, full-scale demonstration tests, simulation,

modeling, engineering evaluation, component properties analysis, and similarity to previously

approved or previously qualified designs.

4.2.1 Verification alternatives. The manufacturer may propose alternative test methods,

techniques, or equipment, including the application of statistical process control, tool control, or

cost effective sampling procedures to verify performance. See the contract for alternatives that

replace verification methods required by this specification.

4.2.2 Operating requirements verifications.

4.2.2.1 Kinematic viscosity. To determine conformance to 3.3.1, the oil shall be tested in

accordance with (IAW) ASTM D445, and exhibit a kinematic viscosity within the range specified

in table I.

4.2.2.2 Corrosion protection (humidity cabinet). To determine conformance to 3.3.2, the

oil shall be tested IAW ASTM D1748, and shall pass (see 6.8).

4.2.2.2.1 Removability. To determine conformance to 3.3.2.1, the oil shall be tested by

completely immersing the three oil-coated test panels used for the humidity cabinet test

the solvent slightly for not more than one minute. Then, repeat this process with methanol IAW

ASTM D 1152. After removal from the solvent, the test panels shall not evidence any oil residue,

stain, or discoloration.

MIL-PRF-32033

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4.2.2.3 Water displacement and water stability. To determine conformance to 3.3.3, the

oil shall be tested IAW method 3007 of FED-STD-791. There shall be no evidence of rust,

mottling, or surface stains on the panels following the test.

4.2.2.4 Corrosiveness (bimetallic couple). To determine conformance to 3.3.4, the oil

shall be tested IAW method 5322 of FED-STD-791. There shall be no evidence of rust, mottling,

or surface stains on the panels following the test.

4.2.2.5 Wear. To determine conformance to 3.3.5, the oil shall be tested IAW

ASTM D4172. Following the test, the average scar diameter on the steel balls shall not exceed

1 mm.

4.2.3 Interface requirements verifications.

4.2.3.1 Copper strip corrosion. To determine conformance to 3.4.1, the oil shall be

than 2a IAW the ASTM Copper Strip Corrosion Standards.

4.2.3.2 Corrosiveness and oxidation stability (metal protection). To determine

conformance to 3.4.2, the oil shall be tested IAW method 5308 of FED-STD-791. The oil shall

not produce corrosion or oxidation effects on metal specimens greater than a weight gain or loss

insoluble materials or gum.

4.2.3.2.1 Viscosity stability. To determine conformance to 3.4.2.1, after completing the

corrosiveness and oxidation stability test (see 4.2.3.2), determine the viscosity of the oil sample at

oil, shall be not more than a 5% decrease or a 20% increase.

4.2.3.2.2 Neutralization number change. To determine conformance to 3.4.2.2, after

completing the corrosiveness and oxidation stability test (see 4.2.3.2), determine the

neutralization number of the oil IAW ASTM D974. The neutralization number shall not be more

than 0.20 higher than the original neutralization number of the oil.

4.2.3.3 Color. To determine conformance to 3.4.3, the oil shall be tested IAW

ASTM D1500, and shall exhibit a color not greater than 7.0.

4.2.4 Support and ownership requirements verifications.

4.2.4.1 Solid sediment/precipitation number. To determine conformance to 3.5.1, the oil

shall be tested IAW ASTM D91, and shall generate not more than 0.5 mL mean total volume of

sediment.

MIL-PRF-32033

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4.2.4.2 Toxicity. To determine conformance to 3.5.2, components of the oil’s

formulation shall be compared with the toxic limits established by the guidelines of OSHA

29 CFR 1910.1200, the ACGIH Threshold Limit Values and Biological Indices and the most

current National Toxicology Program’s Annual report on Carcinogens. Oils with components

exceeding the toxic limits shall be disqualified. Methods of quantitative determination shall be

selected at the discretion of both the qualifying activity and the manufacture/blender.

4.2.4.3 Product identification. To determine conformance to 3.5.3 and 3.5.3.1, the oil

unit containers shall be examined for the proper product warning/identification.

4.2.4.4 Fill (gas-pressurized cans only). To determine conformance to 3.5.4, a can of the

oil shall be weighed. The oil shall be sprayed from the can in three-minute periods, followed by

one minute pauses, until the can is empty. The can shall then be re-weighed, and the net weight

calculated. The calculated net weight shall not be less than 12.5 ounces.

4.2.5 Environmental requirements verifications.

4.2.5.1 Flash point. To determine conformance to 3.6.1, the oil shall be tested IAW

4.2.5.2 Pour point. To determine conformance to 3.6.2, the oil shall be tested IAW

4.2.5.3 Evaporation loss. To determine conformance to 3.6.3, the oil shall be tested at

4.2.5.4 Low temperature stability. To determine conformance to 3.6.4, the oil shall be

crystallization, solidification or separation of insoluble material.

4.2.5.5 Film characteristics/high temperature stability. To determine conformance to

3.6.5, coat a glass panel or a microscope slide with a sample of the oil. Next, drain the panel for

hardness.

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified

in the contract or order (see 6.2). When actual packaging of material is to be performed by DoD

personnel, these personnel need to contact the responsible packaging activity to ascertain requisite

packaging requirements. Packaging requirements are maintained by the Inventory Control Point's

MIL-PRF-32033

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packaging activity within the Military Department or Defense Agency, or within the Military

Department's System Command. Packaging data retrieval is available from the managing Military

Department's or Defense Agency's automated packaging files, CD-ROM products, or by

contacting the responsible packaging activity.

6. NOTES

(This section contains information of a general or explanatory nature which may be

helpful, but is not mandatory.)

6.1 Intended use. The lubricating oil, general purpose, preservative, is intended for

lubrication and protecting against corrosion of certain small arms and automatic weapons and

whenever a general purpose, water-displacing, low-temperature lubricating oil is required. This

limited by a number of machine design factors and should be proved for any specific item

application by test before adoption. The availability of this material in gas-pressurized containers

will prove to be beneficial for use in areas difficult to preserve by existing procedures. This

preservative oil should not be used to protect the fuel system and combustion chamber of engines

which are preserved in accordance with standard procedures. This material contains a carboxylic

acid which could react with certain metals present in the fuel system, forming soaps which could

contribute to fuel filter plugging.

6.2 Acquisition requirements. Acquisition documents must specify the following:

a. Title, number, and date of this specification.

b. Issue of DoDISS to be cited in the solicitation, and if required, the specific issue of

individual documents referenced (see 2.2.1 and 2.3).

c. Location of verification testing (see 4.1).

d. Packaging requirements (see 5.1).

6.3 Qualification. With respect to products requiring qualification, awards will be made

only for products which are, at the time of award of contract, qualified for inclusion in Qualified

Products List QPL No. 800 whether or not such products have actually been so listed by that

date. The attention of the contractors is called to these requirements, and manufacturers are

urged to arrange to have the products that they propose to offer to the Federal Government tested

for qualification in order that they may be eligible to be awarded contracts or purchase orders for

the products covered by this specification. Information pertaining to qualification of products

may be obtained from: Department of the Army, U.S. Tank-automotive and Armaments

Command, F & L Technology Team, ATTN: AMSTA-TR-D/210, Warren, Michigan

48397-5000.

MIL-PRF-32033

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6.4 Definitions.

6.4.1 Film characteristics. A drying process progresses through three stages identified as

gummy, tacky, and hard. These are defined as follows:

a. Gummy - First evidence of becoming viscous.

b. Tacky - Advanced stage of drying, becoming sticky.

c. Hard - A completely dry-to-touch film.

6.5 International standardization. Certain provisions of this specification are the subject

of international standardization agreements (NATO STANAGs 1135 and 7094). When

amendment, revision, or cancellation of this specification is proposed which would affect or

violate the international agreement concerned, the preparing activity will take appropriate

reconciliation action through international standardization channels, including departmental

standardization offices, as required.

6.6 Waste disposal instructions.

6.6.1 Recovery (RC). The very first step in disposal is to coordinate with Defense

Property Disposal Office (DPDO) for turn-in for disposal of any excess items of supply. Defense

Disposal Manual DOD 4160.21-M (with pertinent supplements/messages) describes the

requirements for such turn-ins. Variations exist whether the DPDO accepts physical custody of

the disposal turn-in. The potential for DPDO acceptance and disposal processing is enhanced by

comprehensive identification. If the DPDO does not accept the item for disposal (accountability)

or returns the item to the generator for disposal, the manufacturer/supplier should be contacted

for chemical recovery before proceeding with ultimate disposal management procedures.

DISCLAIMER

THE RECOMMENDED DISPOSAL INSTRUCTION IS FORMULATED FOR USE BY

ELEMENTS OF THE DEPARTMENT OF DEFENSE. THE UNITED STATES OF

AMERICA IN NO MANNER WHATSOEVER EXPRESSLY OR IMPLIEDLY

WARRANTS, STATES, OR INTENDS SAID INSTRUCTION TO HAVE ANY

APPLICATION, USE, OR VIABILITY BY OR TO ANY PERSON OR PERSONS

OUTSIDE THE DEPARTMENT OF DEFENSE NOR ANY PERSON OR PERSONS

CONTRACTING WITH ANY INSTRUMENT OF THE UNITED STATES OF AMERICA

AND DISCLAIMS ALL LIABILITY FOR SUCH USE. ANY PERSON UTILIZING THIS

INSTRUCTION WHO IS NOT A MILITARY OR CIVILIAN EMPLOYEE OF THE

UNITED STATES OF AMERICA SHOULD SEEK COMPETENT PROFESSIONAL

ADVICE TO VERIFY AND ASSUME RESPONSIBILITY FOR THE SUITABILITY OF

THIS INSTRUCTION TO THEIR PARTICULAR SITUATION REGARDLESS OF

SIMILARITY TO A CORRESPONDING DEPARTMENT OF DEFENSE OR OTHER

GOVERNMENT SITUATION.

MIL-PRF-32033

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6.7 Material Safety Data Sheets (MSDS). Contracting officers will identify those

activities requiring copies of MSDS’s prepared in accordance with FED-STD-313. The pertinent

Government mailing addresses for submission of data are listed in FED-STD-313; and

29 CFR 1910.1200 requires that the MSDS for each hazardous chemical used in an operation

must be readily available to personnel using the material. Contracting officers will identify the

activities requiring copies of the MSDS.

6.8 Panel preparation for oil in gas-pressurized cans. Historically, the following

procedure has been found to provide the best results for humidity cabinet testing of oil supplied in

gas-pressurized cans (see 3.3.2 and 4.2.2.2):

Shake a gas-pressurized can of oil vigorously for 30 seconds. Set the cleaned panels at an

angle of 15° from vertical. Hold the pressurized can vertically at a distance of 25 to 30

centimeters from the panel. With the valve open, move the can to direct the spray from

one edge of the panel to the other. Make sufficient passes to assure a continuous coating.

After five minutes examine the coating to determine if it is smooth and unbroken. If the

coating shows evidence of gas entrapment, prepare another panel. Drain the panels for 2

hours and submit them to the test specified in ASTM D1748.

6.9 QPL tolerances. The oils supplied under contract should have the same formulation

as when qualified. The finished oil properties should fall within permissible tolerances as listed in

table II. After the application of tolerances, the values of the properties of the oil should not

exceed the maximum nor fall below the minimum requirements specified herein.

TABLE II. QPL tolerances.

Property Tolerance

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6.10 Subject term (key word) listing.

Lubrication

NATO STANAGs 1135 and 7094

6.11 Changes from previous issue. Marginal notations are not used in this revision to

identify changes with respect to the previous issue due to the extent of the changes.

Custodians: Preparing Activity:

Army - AT Army - AT

Navy - AS

Air Force - 11 (Project 9150-1167)

Review Activities:

Army – AR, MI, MD, SM

Navy – MC, SA

Air Force –03, 50, 68

DLA – GS, PS

STANDARDIZATION DOCUMENT IMPROVEMENT PROPOSAL

INSTRUCTIONS

I RECOMMEND A CHANGE:

3. DOCUMENT TITLE

5. REASON FOR RECOMMENDATION

6. SUBMITTER

(1) Commercial

(2) DSN

7. DATE SUBMITTED

8. PREPARING ACTIVITY

(1) Commercial (2) DSN

(810) 574-8745 786-8745

Commander

U.S. Army Tank-automotive and Armaments Command

ATTN: AMSTA-TR-E/IE

Warren, MI 48397-5000

IF YOU DO NOT RECEIVE A REPLY WITHIN 45 DAYS, CONTACT:

Defense Standardization Program Office (DLSC-LM)

8725 John J. Kingman Road, Suite 2533

Fort Belvoir, Virginia 22060-6221

Telephone (703) 767-6888 DSN 427-6888

1. The preparing activity must complete blocks 1, 2, 3, and 8. In block 1, both the document number and revision letter

should be given.

2. The submitter of this form must complete blocks 4, 5, 6, and 7, and send to preparing activity.

3. The preparing activity must provide a reply within 30 days from receipt of the form.

NOTE: This form may not be used to request copies of documents, nor to request waivers, or clarification of

requirements on current contracts. Comments submitted on this form do not constitute or imply authorization to waive

any portion of the referenced document(s) or to amend contractual requirements.

DD FORM 1426, FEB 1999 (EG) WHS/DIOR, Feb 99 PREVIOUS EDITION IS OBSOLETE.

MIL-PRF-32033 20000724

LUBRICATING OIL, GENERAL PURPOSE, PRESERVATIVE (WATER-DISPLACING, LOW TEMPERATURE)

Army – AR, MI, MD, SM

Navy – MC, SA

Air Force – 03, 50, 68

DLA – GS, PS

AMSC N/A 1 of 1 FSC 9150

DISTRIBUTION STATEMENT A. Approved for public release, distribution is unlimited.