1、MIL-G-25033E 73 m 7744706 0305277 3 m MIL-G-25013E 20 June 1983 SUPERSEDING MIL-G-25013D 19 January 1965 MILITARY SPECIFICATION GREASE, AIRCRAFT, BALL AND ROLLER BEARING, NATO CODE NUMBER G-372, METRIC This specification is approved for use by all Departments and Agencies of the Department of Defens
2、e. 1. SCOPE 1.1 Scope. This specification covers the requirements for one grade of grease for use in anti-friction bearings where operation of low torque equipm nt will require lubrication for extended periods at temperatures as low as -73 C and as high as 232OC. This grease is identified by NATO sy
3、mbol G-372 (see 6.5). 6 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, 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 Standa
4、rds (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. STANDARDS FEDERAL FED-STD-313 - Material Safety Data Sheets Preparation and Sub- miss ion of. Method of Testing. FED-SlD-7 91 - Lubricants, Liquid Fuels and Related Products, MILITARY MIL-STD
5、-105 - Sampling Procedures and Tables for Inspection by Attributes. MIL-STD-2 90 - Packaging of Petroleum and Related Products. MIL-STD-1189 - Standard Symbology for Marking Unit Packs, Outer Containers, and Selected Documents. Beneficial comments (recommendations, additions, deletions) and any pert
6、inent data which may be of use in improving this document should be addressed to: Engineering Specifications and Standards Department (Code 93 ), Naval Engineering Center, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improve- ment Proposal (DD Form 1426) appearing at the
7、 end of this document or by letter. FSC 9150 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-25013E 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part o
8、f this specifi- cation to the extent specified herein. PUBLICATIONS CODE OF FEDERAL REGULATIONS 49 CFR - Transportation - Hazardous Materials. (Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, DC 20402.) (Copies of specifications,
9、 standards, handbooks, drawings, and publications required by manufacturers in connection with specific 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 specifi- cat
10、ion to the extent specified herein. The issues of the documents which are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 217 - ASTM D 270 - ASTM D 942 - ASTM D 1264 - ASTM D
11、1478 - ASTM D 1743 - ASTM D 2265 - ASTM D 2595 - ASTM D 3336 - ASTM D 4048 - Cone Penetration of Lubricating Grease. Petroleum and Petroleum Products, Sampling. Oxidation Stability of Lubricating Greases by the Oxygen Bomb Method. Water Washout Characteristics of Lubricating Greases. Low-Temperature
12、 Torque of Ball Bearing Greases. Corrosion Preventive Properties of Lubricating Greases. Dropping Point of Lubricating Grease Over Wide Tempera- ture Range. Evaporation Loss of Lubricating Greases Over Wide Temperature Range. Performance Characteristics of Lubricating Greases in Ball Bearings at Ele
13、vated Temperatures. Detection of Copper Corrosion From Lubricating Grease 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.) AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI 2129
14、.1 - American National Standard for the Precautionary Labeling of Hazardous Industrial Chemicals. (Application for copies should be addressed to the American National Standards Institute, 1430 Broadway, New York, NY 10018.) (Industry association specification and standards are generally available fo
15、r reference from libraries. They are also distributed among technical groups and using Federal agencies.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I a a a nIL-G-25033E 73 m 7777906 0305277 7 m MIL-G-2 5 O1 3E 2.3 Order of precedence. In the
16、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 grease furnished under this specification shall be products which are qualified for listing on the applicable quali
17、fied products list at the time set for opening of bids (see 4.3 and 6.3). 3.2 Material. The grease shall be a mixture consisting essentially of a suit- able liquid lubricant, a gelling agent and any additives that may be needed to meet specification requirements. 3.3 Physical properties. Physical pr
18、operties of the grease shall be in accordance with Table I. 3.4 Material, safety data sheets. Material safety data sheets shall be prepared and submitted in accordance with FED-STD-313. Material safety data sheets shall also be forwarded as specified in 4.3.2. The grease shall have no adverse effect
19、 on the health of personnel when used for its intended purpose. Questions pertinent to this effect shall be referred by the contracting activity to the appropriate departmental medical service who will act as an advisor to the contracting agency (see 4.3.2 and 6.2.le). 3.5 Workmanship, The grease, w
20、hen examined visually, shall be a smooth homogenous mixture, free of lumps and abrasive material. When worked with a spatula on a glass surface, the grease shall be observed for uniformity and its ability to be spread with a straight edge to a smooth surface. 4. QUALITY ASSURANCE PROVISIONS 4.1 Resp
21、onsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all in- spection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use hisown or any other
22、 facTlities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The 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 servic
23、es conform to prescribed require- ment s. 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: a. Qualification inspection (see 4.3) . b. Quality conformance inspection (see 4.4). 4.3 Qualification inspection. Qualification inspection shall consis
24、t of a review of the test report (see 4.3.2) for approval and by testing to determine that the qualification inspection sample (see 4.3.1) complies with all the re- quirements for the physical properties specified in Table I when tested in accord* ance with the inspection methods specified in Table
25、II. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-25013E 4.3.1 _Qualification inspection sample_. The qualification inspection sample shall consist of 5 kilograms of grease. The sample shall be forwarded to the Aircraft and Crew Systems Tec
26、hnology Directorate, Code 60612, Naval Air Development Center, Warminster, PA 18974. The sample shall be plainly identified by a se- curely attached durable tag or label marked with the following information: Sample for qualification inspect ion GREASE, AIRCRAFT, BALL AND ROLLER BEARING, NATO CODE N
27、UMBER G-372 Name of manufacturer Product code number Batch number Date of manufacture Submitted by (name) (date) for qualification inspection in accordance with MIL-G-25013E under authorization of (reference authorizing letter) (see 6.3) a 4.3.2 Test reports. Two copies of the manufacturers test rep
28、ort, containing complete test data showing that material submitted for qualification conforms to the requirements of this specification, shall be submitted with the qualification plample. Location and identity of the plant which produced the sample tested shall also be supplied, Material safety data
29、 sheets on toxicity, prepared as specified if 3.4, shall be submitted to the qualifying laboratory (see 4.3.1). 4,3,3 Retention of qualif,ication, In order to retain qualification of a product approved for listing on the Qualified Products List (QPL), the manufactur- er shall verify by certification
30、 to the qualifying activity, that the manufactur- ers product complies with the requirements of this specification. The time of 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 qualified
31、 product whenever deemed necessary to determine that the product con- tinues to meet any or all of the specification requirements, 4.4 Quality conformance inspection. The quality conformance inspection of the grease shall consist of tests of samples from 4.4.2.2 in accordance with Table III and an e
32、xamination of samples from 4.4.2.1 for conformance with 4.6.1. Samples shall be labeled completely with the information identifying the purpose of the sample, name of product, specification number, lot and batch number, date-of sampling and contract number, 4.4.1 Lot formation, A lot shall consist o
33、f all the grease produced by one manufacturer, at one plant, from the same materials and under essentially the same conditions, provided the operation is continuous and does not exceed a 24 hour period, In the event the process is a batch operation, each batch shall con- stitute a lot (see 6.4) . 4.
34、4 . 2 Sampling. 4.4.2.1 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-JO5, Inspection Level I with an Acceptable Quality Level (AQL) of 2.5 percent defective. Provided by
35、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-25013E 91 M 9999906 OLOS28L 5 MIL-G-25013E 4.4.2.2 For tests. The sample for tests shall consist of two 2 kilogram samples of grease taken at random from filled containers from each lot of grease. For users
36、who obtain grease in large containers, two 2 kilogram samples shall be taken in accordance with ASTM D 270. The lot shall be unacceptable if either sample fails to comply with any of the requirements for the tests specified in 4.6.2. . 4.5 Test conditions. Test conditions shall be in accordance with
37、 4.6 and the physical values specified in Table I apply to the average of determinations made on the sample. Unless otherwise specified, all tests shall be conducted on unworked grease. 4.6 Methods of examinations and tests. 4.6.1 Examinations. Each of th filled containers, selected in accordance wi
38、th 4.4.2.1, shall be examined for defects of the container and closure, for evidence of leakage and for unsatisfactory markings to determine conformance with 5;l. Each sample container shall also be weighed to determine the amount of contents, If the number of defective containers exceeds the accept
39、ance number of the sampling plan specified in 4.4.2.1, the lot shall be rejected. 4.6.2 Tests. Tests shall be performed- in accordance with Table II to deter- mine conformance with the requirements specified in 3.3. 5. PACKAGING 5.1 Packaging, and packing. The grease shall be packaged and packed in
40、accord.- ance 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). 5.1.1 Marking. All unit, intermediate and shipping containers shall be marked in accordance with MIL-STD-290, MIL-STD-1189 and Title
41、 49 of the Code of Federal Regulations and any other additional special markings specified by the acquiring activity (see 6.2.lf). All unit and intermediate packs of toxic and hazardous chemicals and materials shall also be labeled in accordance with the applicable laws, statutes, regulations or ord
42、nances, including Federal, State, and Municipal requirements. In addition unit and intermediate containers, including unit contain- ers that serve as shipping containers, such as -pails and drums, shall be marked with the applicable precautionary information detailed in ANSI 2129.1. 6. NOTES 6.1 Int
43、ended use. The grease covered by this specification is intended for use in balland roller bearings over the temperature range of -73OC to 232OC. It is particularly designed for those ball and roller bearing applications in temper- ature ranges where soap-type petroleum oil or soap-type synthetic oil
44、 greases may not normally be applicable. It will permit operation of equipment at -73 C and will lubricate anti-friction bearings continuously at temperatures as high as 232OC when the DN value (product of bearing bore diameter in mm and speed in rpm) of the bearing does not exceed 200,000. It may b
45、e used for such applications as aircraft actuators, gear boxes, and similar equipment, and is recommended only after performance evaluation tests of the lubricant have proven satisfactory. O 5 F,/ P Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL
46、-G-25013E I 6.2 Ordering data. 6.2.1 Acquisition requirements. Acquisition documents should specify the following : a. Title, number and date of this specification. b. Quantity desired. c. Size and type of container for grease (see 5.1). d. Applicable levels of packaging and packing and other option
47、s (see 5.1). e. Specify DAR Clauses 7-104.98 and 1-323.2. f. Any special markings required (see 5.1.1). 6.3 Qualification. With respect to products requiring qualification, awards may be made only for products which are, at the time set for opening of bids, qualified for inclusion in Qualified Produ
48、cts List (QPL-25013) whether or not such products have actually been so listed by that date. The attention of the con- tractors 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 i
49、n 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-5304CY Washington, DC 20361; however, information pertaining to * qualification of products and letter of authorization for submittal of sample may be obtained from the Aircraft and Crew Systems Technology Directorate, Code 60612, Naval Air Developmen
