1、, MIL-G-ZLLbYD 71 77777Ob 01030115 5 ,“s7-71 MIL-G-21164D 8 December 5982 SUPERSEDING 17 July 1968 MIL-G-21164C MILITARY SPECIFICATION GREASE, MOLYBDENUM DISULFIDE, FOR LOW AND HIGH TEMPERATURES, NATO CODE NUMBER G-353 This specification is approved for use by the Departments and Agencies of the Dep
2、artment of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for one-grade of low and high temperature molybdenum disulfide grease for use as a lubricant on heavily loaded sliding steel surfaces. This grease is identified by NATO Symbol G-353 Military Symbol GMD. 2. APPLICABLE
3、DOCUMENTS 2.1 Government documents. 2.1.1 Speciflcations, standards, and handbooks. Unless otherwise specified, the following specifications, standards, and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) speci- fied in the soli
4、citation form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-“7866 - Molybdenum Disulfide, Technical, Lubricant Grade. STANDARDS FEDERAL FED-STD-313 - Material Safety Data Sheets Preparation and the FED-STD- 79 1 - Lubricants, Liquid Fuels and Related Produc
5、ts, Submission of. Methods of Testng. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Engineering Specifications and Standards Department (Code 93), Naval Air Engineering Center, Lakehurst, NJ 0
6、8733, by-using the self-addressed Standardization Document Improve- ment Proposal (DD Form 1426) appearing at the end of this d0cumen.t or by letter. FSC 9150 M Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-G-2LLbYD 93 W 977790b 0303046 7 W MIL
7、-G-21164D MILITARY MIL-STD-105 I Sampling Procedures and Tables for Inspection by MIL-STD-290 - Packaging, Packing and Marking of Petroleum and Attributes. Related Products. (Copies of specifications, standards, handbooks, drawings, and publications required by manufacturers in connection with speci
8、fic acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. The issues of the documents which are indicated as DoD adopted shal
9、l be the issue listed in the current DoDISS and the supplement thereto, if applicable. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 217 ASTI4 D 942 ASTI4 D 1264 ASTM D 1478 ASTM D 1743 ASTI1 D 2265 ASTM D 2595 ASTbl D 2596 ASTI4 D 3336 ASTI4 D 4048 Cone Penetration of Lubricating Grease,
10、 Oxidation Stability of Lubricating Greases by the Oxygen Bomb Method. Water Washout Characteristics of Lubricating Greases. Low-Temperature Torque of Ball Bearing Greases, Corrosion Preventive Properties of Lubricating Greases. Dropping Point of Lubricating Grease Over Wide Temperature Range. Zvapo
11、ration Loss of Lubricating Greases Over Wide Tempera- ture Range. Extreme-Pressure Properties of Lubricating Grease (Four- Ball Method), Measurement of. Performance Characteristics of Lubricating Greases in Ball Bearings at Elevated Temperatures. Detection of Copper Corrosion from Lubricating Grease
12、 by the Copper Strip Tarnish Test. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Industry association specifications and standards are generally available for reference from libraries. They are also distribu
13、ted among technical groups and using Federal agencies.) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification shall take precedence. 3 REQUIREMENTS 3.1 Qualification. The molybdenum disulfide grease
14、furnished under this specification shall be products which are qualified for listing on the applicable qualified products list at the time set for opening of bids (see 4.3 and 6.3). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-21164D 3.2 Fir
15、st article. When specified (see 6.2.1), a sample shall be subjected to first article inspection (see 4.4 and 6.4). 3.3 Materials. The composition of the grease is not limited, except that it shall contain a diester liquid lubricant with a suitable gelling agent and molybde- num disulfide cpnforming
16、to MIL-M-7866, (see 4.7.2). 3.4 Physical properties. The finished grease shall conform to the requirements specified in table I when tested in accordance with 4.7.2. 3.5 Chemical properties. 3.5.1 Molybdenum disulfide content. The grease shall contain not less than 4.5 percent and not more than 5.5.
17、percent molybdenum disulfide when tested in accordance with 4.7.2. 3.6 Toxicity. The grease shall have no adverse effect on the health of personnel when used for its intended purpose. The grease shall contain no components which produce noxious vapors in such concentrations as to be an annoyance to
18、personnel during formulation or use under conditions of adequate ventilation while exercising caution to avoid prolonged contact with the skin and while observing Occupational Safety and Health Administration (OSHA) guidelines. Questions pertaining to the toxic effects shall be referred by the contr
19、acting activity to the appropriate departmental medical service who will act as an advisor to the contracting agency (see 4.3.2). 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the Per
20、formance of all in- spection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. T
21、he Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.2 Classification of inspections. The inspection requirements specified herein are classi
22、fied as follows: a. Qualification inspection (see 4.3). b. First article inspection (see 4.4). c. Quality conformance inspection (see 4.5). 4.3 Qualification inspection. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-G-2 1164D 4.3.1 Qualificat
23、ion inspection sample. The qualification inspection sample shall consist of 10 pounds of grease. The sample shall be forwarded to the Air- craft and Crew Systems Technology Directorate, Code 60612, Naval Air Development Center, Warminster, PA 18974. The sample shall be plainly identified by a secure
24、ly attached durable tag or label marked with the following information: Sample for qualification inspection. Grease, Molybdenum Disulfide, for Low and High Temperatures. Name of manufacturer. Product code number. Batch number. Date of manufacture. Submitted by (name) (date) for qualification inspect
25、ion in accordance with MIL-G-21164D under authorization of (reference authorizing letter) (see 6.3). 4.32 Test reports. Two copies of the manufacturers test report, containing complete test data showing that material submitted for qualification conforms to the requirements of this specification, sha
26、ll be submitted with qualification sample. Location and identity of the plant which produced the sample tested shall also be supplied. Material safety data sheets on toxicity shall be prepared and submitted to the qualifying laboratory (see 4.3.1) in accordance with FED-STD-313 (see 3.6). 4.3.3 Rete
27、ntion of qualification. In order to retain qualification of a product approved for listing on the Qualified Products List (QPL), the manufacturer shall verify by certification to the qualifying activity, that the manufacturers product complies with the requirements of this specification. The time of
28、 periodic verification by certification shall be in two-year intervals from the date of original qualification. The Government reserves the right to re-examine the qual- fied product whenever deemed necessary to determine that the product continues to meet any or all of the specification requirement
29、s. I 4.3.4 Qualification inspection tests. Qualification inspection tests shall be as specified in 4.7.2. 4.4 First article inspection. The manufacturer shall submit to the qualifying laboratory (see 4.3.1) a 10 pound sample of grease taken from the first production I. lot: sf grease processed undei
30、 the first contract or order, After the product has passed the qualification inspection (see 6.3), the tests shall be limited to the requirements of 3.4 and 3.5 and the methods of 4.7.2. Delivery of the grease shall not be delayed pending completion of testing on the first article sample by the qual
31、ifying laboratory, 4.5 Quality conformance inspection. The quality conformance inspection of the grease samples from 4.5.2 shall consist of the examinations and tests specified in table II. 4.5.1 Lot formation. A lot shall consist of all the grease produced by one manufacturer, at one plant, from th
32、e same materials and under essentially the same conditions, provided the operation is continuous and does nat exceed a 24 hour period. In the event the process is a batch operation, each batch shall constitute a lot (see 6.5). Provided by IHSNot for ResaleNo reproduction or networking permitted with
33、out license from IHS-,-,-MIL-G-21164D 4.5.2 Sampling. 4.5.2.1 For examination of filled containers. A random sample of filled con- tainers, fully prepared for delivery, shall be selected from each lot of grease in accordance with MIL-STD-105, inspection level I and an acceptable quality level (AQL)
34、of 2.5 percent defective. 4.5.2.2 For tests. The sample for tests shall consist of two 5 pound samples of grease taken at random from filled containers from each lot of grease. The lot shall be unacceptable if either sample fails to comply with any of the requirements for the tests specified in 4.7.
35、2. 4.6 Test conditions. Test conditions shall be in accordance with 4.7 and the physical values specified in section 3 apply to the average of determinations made on the sample. 4.7 Methods of examinations and tests. 4.7.1 Examinations. Each of the filled containers, selected in accordance with 4.5.
36、2.1, shall be examined for defects-of the container and closure, for evidence of leakage and for unsatisfactory markings to determine conformance with 5.1. Each sample container shall also be weighed to determine the amount of contents. If the number of defective containers exceeds the acceptance nu
37、mber of the sampling plan specified in 4.5.2.1, the lot shall be rejected. 4.7.2 Tests. Tests shall be performed in accordance with table ILL to determine conformance with the requirements specified in 3.4 and 3.5. 5. PACKAGING 5.1 Packaging, packing and marking. The grease shall be packaged, packed
38、 and marked in accordance with MIL-STD-290. The type and size of the containers and the level of packaging and packing shall be as specified by the acquiring activity (see 6.2.1). 6. NOTES 6.1 Intended use. The grease covered by this specification is intended for use as a lubricant for accessory spl
39、ines, heavily loaded sliding surfaces or for anti- friction bearings carrying high loads and operating through wide temperature ranges where molybdenum disulfide will prevent or delay seizure in the event of inadequate lubrication. This grease should not be used for wheel bearings or for other than
40、steel surfaces without prior performance evaluation. 6.2 Ordering data. a. Title, number and date of this specification. b. Quantity desired. c. Whether first article inspection is required (see 3.2 and 4.4). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from I
41、HS-,-,-MIL-G-21164D d. Size and type of container for grease (see 5.1). e. Applicable levels of packaging and packing and other options (see 5.1). 6.3 Qualification, With respect to products requiring qualification, awards will be made only for products which are, at the time set for opening of bids
42、, qualified for inclusion in Qualified Products List (QPL-21164) 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 Fed
43、eral Government tested for quali- fication in order that they may be eligible to be awarded contracts or purchase orders for the products covered by this specification. The activity responsible for the Qualified Products List is Commander, Naval Air Systems Command, Attn: AIR- 5304, Washington, DC 2
44、0361; however, information pertaining to qualification of products and letter of authorization for submital of sample may be obtained from the Aircraft and Crew Systems Technology Directorate, Code 60612, Naval Air Development Center, Warminster, PA 18974. 6.4 First article. When a first article ins
45、pection is required, the item will be tested and should be a sample selected from the first production lot. The first article should consist of a 10 pound sample of grease. The contracting officer should include specific instructions for examinations, tests and approval of the first article. 6.5 Bat
46、ch, A batch is defined as that quantity of material which has been manufactured by some unit chemical process and subjected to some physical mixing operation intended to make the final product substantially uniform. 6.6 International standardization agreements. Certain provisions of this speci- fica
47、tion (see 1.1) are the subject of international standardization agreement, ASCC Air Standard 15/1, NATO STANAG NAT-STD-1135. When amendment, revision, or cancel- lation of this specification is proposed, which will modify the international agree- ment concerned, the preparing activity will take appr
48、opriate action through inter- national standardization channels including departmental standardization offices to change the agreement or make other appropriate accomodations. Custodians: Army - ME Navy - AS Air Force - 11 Review activities: Army - AR, MI Air Force - 85 International Interests: NATO
49、 (see 6.6) Preparing activity: Navy - AS (Project No. 9150-0602) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-Z116“lD 91 W 9997706 0103051 O W MIL-G- 2 1 16 4D TABLE I. Physical properties. Characteristics Penetration: Unworked, minimum Worked Dropping point, C ( F), minimum O0 Bomb oxidation: . Pressure drop, KPa (psi), maximum: in 100 hours in 500 hours Copper, corrosion: ASTM classification, maximum Wa
