1、SAE-AS8660ADOPTION NOTICESAE-AS8660, “SILICONE COMPOUND NATO CODE NUMBER S-736“, wasadopted on 30-SEP-99 for use by the Department of Defense(DoD). Proposed changes by DoD activities must be submitted tothe DoD Adopting Activity: Commander, Naval Air Warfare Center,Aircraft Division, Code 414100B120
2、-3, Highway 547, Lakehurst, NJ08733-5100. Copies of this document may be purchased from theSociety of Automotive Engineers 400 Commonwealth DriveWarrendale, Pennsylvania, United States, 15096-0001. http:/www.sae.org/_Custodians: Adopting Activity:Navy - ASArmy - MRNavy - ASAir Force - 11Reviewer Act
3、ivities:Other - DSFSC 6850DISTRIBUTION STATEMENT A: Approved for public release; distributionis unlimited.SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and it
4、s applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comment
5、s and suggestions.Copyright 1999 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8510 FAX: (724) 776-0243TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS: http:/www.sae.org400 Commonwealth Drive, Warr
6、endale, PA 15096-0001AEROSPACE STANDARDAS8660Issued 1999-07Silicone CompoundNATO Code Number S-736FSC 6850NOTICEThis document has been taken directly from U.S. Military Specification MIL-S-8660C, Amendment 1 and contains only minor editorial and format changes required to bring it into conformance w
7、ith the publishing requirements of SAE technical standards. The initial release of this document is intended to replace MIL-S-8660C, Amendment 1. Any part numbers established by the original specification remain unchanged.The original Military Specification was adopted as an SAE standard under the p
8、rovisions of the SAE Technical Standards Board (TSB) Rules and Regulations (TSB 001) pertaining to accelerated adoption of government specifications and standards. TSB rules provide for (a) the publication of portions of unrevised government specifications and standards without consensus voting at t
9、he SAE Committee level, and (b) the use of the existing government specification or standard format.Under Department of Defense policies and procedures, any qualification requirements and associated qualified products lists are mandatory for DOD contracts. Any requirement relating to qualified produ
10、cts lists (QPLs) has not been adopted by SAE and is not part of this SAE technical document.SAE AS8660 - 2 -1. SCOPE:1.1 Scope:This specification covers one type of a nonmelting, heat stable silicone compound for use in high tension electrical connections, ignition systems and electronics equipment;
11、 for application to unpainted mating threaded or non-threaded surfaces, and as a lubricant for components fabricated from rubber. This compound is effective in the temperature range from -54C (-65F) to +204C (+400F) for extended periods and to 260C (500F) for short periods. This compound is identifi
12、ed by NATO symbol S-736 (see 6.5).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
13、 and Standards (DODISS) specified in the solicitation form a part of this specification to the extent specified herein.SPECIFICATIONSFEDERALO-A-548 Antifreeze/Coolant, Engine, Ethylene Glycol, Inhibited, ConcentratedO-G-491 Glycerol, Technical (High Gravity)QQ-A-250/4 Aluminum Alloy 2024, Plate and
14、SheetQQ-B-613 Brass, Leaded and Non-Leaded, Flat Products, (Plate, Bar, Sheet and Strip)QQ-C-502 Copper Rods and Shapes, and Flat Products with Finished Edges (Flat Wire, Strips and Bars)QQ-L-201 Lead SheetQQ-P-416 Plating, Cadmium (Electrodeposited)QQ-S-571 Solder, Tin Alloy, Lead-Tin Alloy, and Le
15、ad AlloyQQ-Z-301 Zinc Sheet and StripTT-I-735 Isopropyl AlcoholMILITARYMIL-M-14 Molding Plastics and Molded Plastic Parts, ThermosettingMIL-E-463 Ethyl Alcohol (For Ordnance Use)MIL-E-480 Enamel, Baking, Phenol-or-Urea-FormaldehydeMIL-I-631 Insulation, Electrical, Synthetic-Resin Composition, Non-ri
16、gidMIL-R-3065 Rubber, Fabricated PartsMIL-C-3702 Cable, Power, Electrical, Ignition, High TensionMIL-S-5059 Steel, Corrosion Resistant (18-8), Plate, Sheet and StripMIL-I-24092 Insulation Varnish, Electrical, Impregnating, Solvent ContainingSAE AS8660 - 3 -2.1.1 (Continued):STANDARDSFEDERALFED-STD-3
17、13 Material Safety Data Sheets Preparation and the Submission ofFED-STD-791 Lubricant, Liquid Fuel and Related Products, Methods of TestingMILITARYMIL-STD-105 Sampling Procedures and Tables for Inspection by AttributesMIL-STD-290 Packaging of Petroleum and Related Products(Copies of specifications,
18、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 specification to
19、 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 OF TESTING AND MATERIALS (ASTM)ASTM A 569 Steel, Carbon (0.15 Maximum, Percent), Hot-Rolled Sheet an
20、d Strip, Commercial QualityASTM D 149 Dielectric Breakdown, Voltage and Dielectric Strength of Electrical Insulating Materials at Commercial Power FrequenciesASTM D 150 A-C Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulating MaterialsASTM D 217 Cone Penetration
21、 of Lubricating GreaseASTM D 257 D-C Resistance or Conductance of Insulating MaterialsASTM D 495 High Voltage, Low Current, Dry Arc Resistance of Solid Electrical InsulationASTM D 1478 Low-Temperature Torque of Ball Bearing Greases(Application for copies should be addressed to the American Society f
22、or Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.)SOCIETY OF AUTOMOTIVE ENGINEERS, INC (SAE)AMS 4377 Sheet and Plate - 3.0 AL 1.0 Zn(Application for copies should be addressed to SAE, 400 Commonwealth Drive, Warrendale, PA 15096.)(Industry association specifications and standards a
23、re generally available for reference from libraries. They are also distributed among technical groups and using Federal agencies.)SAE AS8660 - 4 -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
24、shall take precedence.3. REQUIREMENTS:3.1 Qualification:The silicone compound 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).3.2 Materials:The materials used in the f
25、ormulation of the silicone compound shall be of high quality and suitable for the intended use. The final product shall be a smooth, non-lumpy grease-like compound.3.2.1 Toxicity: The material shall have no adverse effect on the health of personnel when used for its intended purpose. Questions perti
26、nent to this effect shall be referred by the contracting activity to the appropriate departmental medical service who will act as an adviser to the contracting agency.3.2.2 Color: In its natural form, the compound shall be translucent and of a color similar to light gray or cream. When specified (se
27、e 6.2c), a dye or pigment may be incorporated in the material provided the finished compound meets the requirements of this specification in all other respects.3.3 Performance characteristics:3.3.1 Physical properties: Physical properties of the silicone compound shall be in accordance with the requ
28、irements in Table I.3.3.2 Waterproof sealing: When tested as specified in 4.6.9, the test paper discs from 3 of the 5 tests shall show no pink coloration. Color changes within 1/8 inch of the edges of the test discs shall be disregarded.3.3.3 Electrical properties: Electrical properties of the silic
29、one compound shall be in accordance with Table II.3.3.4 Storage stability: Unworked and worked penetration of the compound after the 6 months of storage at 37.8 3C (100 5F) as specified in 4.6.14 taken at 25 1C (77 2F) shall conform to the requirement in Table I.3.3.5 Workmanship: The compound shall
30、 be processed to produce a homogeneous mixture free from lumps, cakes, abrasives, and foreign materials.SAE AS8660 - 5 -4. QUALITY ASSURANCE PROVISIONS:4.1 Responsibility for inspection:Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of
31、 all inspection 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. The Government
32、 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 inspection:The inspection requirements specified herein are classified as follows:
33、a. Qualification inspection (see 4.3).b. Quality conformance inspection (see 4.4).4.3 Qualification inspection:The qualification inspection shall consist of all the requirements and tests specified in Tables I and II.4.3.1 Qualification inspection sample: The qualification inspection sample shall co
34、nsist of 10 pounds of the compound packaged as specified in Section 5 of this specification. The sample shall be forwarded to the qualifying laboratory, Commander, Naval Air Development Center, Attention: Aircraft and Crew Systems Technical Directorate (6062), Warminster, PA 18974. The sample shall
35、be plainly and durably marked with the following information:Sample for qualification inspectionSILICONE COMPOUND, NATO CODE NUMBER S-736MIL-S-8660CName of manufacturerProduct code numberDate of manufactureSubmitted by (name) (date) for qualification inspection in accordance with the requirements of
36、 MIL-S-8660C under authorization (reference authorizing letter) (see 6.3).SAE AS8660 - 6 -4.3.2 Manufacturers data: Two copies of the manufacturers test report, containing complete test data showing that material submitted for qualification conforms to the requirements of this specification, shall b
37、e submitted with the qualification sample. The location and identity of the plant which produced the sample tested shall also be supplied. Material safety data sheets on toxicity (see 3.2.1) shall be prepared in accordance with FED-STD-313 and submitted to the qualifying laboratory (see 4.3.1). 4.3.
38、3 Retention 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 t
39、ime 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 product whenever deemed necessary to determine that the product continues to meet any or all of the specification requir
40、ements.4.4 Quality conformance inspection:4.4.1 Lot information: Unless otherwise specified herein or in the contract, a lot shall consist of all the silcone compound manufactured as one batch (see 6.4), forming part of one contract or order and submitted for inspection at one time.4.4.2 Sampling fo
41、r quality conformance inspection:4.4.2.1 Sampling for tests: Two-5 pound samples of silicone compound shall be randomly selected from each lot and tested as specified in 4.4.3.1.4.4.2.2 Sampling for packaging:4.4.2.2.1 Unit container: A random sample of filled containers shall be selected from each
42、lot in accordance with Inspection Level I of MIL-STD-105 and examined as specified in 4.4.3.2. The lot size shall be the total number of unit containers.4.4.2.2.2 Shipping containers: Shipping containers, just prior to closure, shall be randomly selected from each lot in accordance with Inspection L
43、evel I of MIL-STD-105 and examined as specified in 4.4.3.2. The lot size shall be the total number of shipping containers.4.4.3 Testing and examination of quality conformance samples:4.4.3.1 Testing: The sample selected in 4.4.2.1 shall be tested to the requirements in Table III on a lot by lot basi
44、s or once in ten lots as specified in that table. Nonconformance of a test specimen to a single requirement in Table III shall be cause to reject the lot represented by the sample. Should the failure occur in a one in ten lot examination, the Government may, at its option, require testing on each su
45、bsequent lot.SAE AS8660 - 7 -4.4.3.2 Packaging: Samples selected in 4.4.2.2.1 and 4.4.2.2.2 shall be examined to the requirements in MIL-STD-290 and Table IV. The acceptable quality level (AQL) for this examination shall be 4.0 percent defective.4.5 Test conditions:4.5.1 Standard conditions: Standar
46、d laboratory conditions shall be 25C 1C (77 2F) with a relative humidity (RH) of 50 5 percent. Unless otherwise specified in the test method, testing of the silicone compound shall be at standard conditions. 4.5.2 Specimen preparation: Unless otherwise specified, the compound shall be examined and t
47、ested as taken from the container without treatment or preconditioning of any kind. However, if the compound contains air bubbles, they shall be removed before testing by subjecting the compound to vacuum and heat.4.6 Test methods:4.6.1 Appearance: The silicone compound shall be visually examined fo
48、r conformance to 3.2 and 3.2.2.4.6.2 Insolubility: A determination of the compounds insolubility in solvents shall be made using distilled water, isopropyl alcohol (TT-I-735) diluted with water to 90% by weight, ethyl alcohol (MIL-E-463), ethylene glycol (0-A-548) and glycerine (0-G-491).4.6.2.1 Pro
49、cedure: Approximately 3 grams of the compound, accurately weighed, shall be smeared around the inside of a weighed glass beaker, 250 ml capacity. Prepare 16 specimens in this manner. Three for each solvent (4.6.2) and one to act as control during the drying operation. Approximately 100 ml of the solvent, or enough to immerse the compound, shall be poured into the container. The container shall be tightly capped with metal foil and left to stand for a period of 7 days at standard conditions. At intervals of approximately 24
