1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Revisions1978 10 03 CF4J-RD572213-6 Metricated & Retyped1967 04 27 Released F6-3096 (Was XF-M4Gx10)WP 3948-a Page 1 of 2SEALER, LOCKING - HIGH STRENGTH - HIGH VISCOSITY ESF-M4G157-A1. SCOPE:The material defined by this
2、specification is an anaerobic compound thathardens readily between closely filled metal surfaces.2. APPLICATION:This specification was released originally for material used for sealingand/or locking threaded fasteners on the shock absorber, or similarapplications. This could be either for fluid pres
3、sure resistance orworking loose under shock and vibration or a combination of both.3. REQUIREMENTS:3.1 COLOR Red3.2 VISCOSITY AT 23 +/- 2 C 1000-3000 cP ( mPa.s)(ASTM D 445)3.3 SOLUBILITYPlace a drop of sealant in 1 mL of trichloroethylene. Aftershaking the mix thoroughly, the solution shall be exam
4、ined undertransmitted light. It shall be clear and free from precipitate.3.4 LOCKING STRENGTH 100 - 270 lb-in (11.3 - 30.5 N-m)(FLTM BV 12-1)3.5 RESISTANCE TO ESE-M2C48-A OIL Must not leak(FLTM BV 6-1, 72 h)3.6 RESISTANCE TO A SOLUTION OF 50% Must not leakESE-M97B18-A AND 50% WATER(FLTM BV 6-1, 72 h
5、)3.7 TOXICITYThe material shall be nontoxic and shall not cause skin rash orirritation (dermatitis) to exposed handlers in normal productionoperations. Benzene and chlorinated hydrocarbon solvents areconsidered toxic and their use is strictly prohibited incompounding material to this specification.3
6、8 QUALITYShall be a smooth, homogeneous mixture, free from foreign materialsand properties detrimental to normal production use.ENGINEERING MATERIAL SPECIFICATION ESA-M4G157-AWP 3948-b Page 2 of 23.9 STORAGE STABILITYOne bottle shall be conditioned for 10 days at 49 +/- 1 C. Aftercooling to room te
7、mperature, the compound shall be tested forviscosity ( para 3.2) and locking strength after normal curing ( para3.4). An increase in viscosity of 50% or failure of the compound tomeet the locking strength shall constitute excessive deterioration,and must be rejected.3.10 SUPPLIERS RESPONSIBILITYMate
8、rial supplied to this specification must be equivalent to thatoriginally approved. Changes in formulation or processing shallnot be made without prior approval as described in SupplierProcedure I-A.4. APPROVAL OF SUPPLIERS:Suppliers to this specification must be approved by the affected productengineering office. Procedure for gaining approval of a specificmaterial to a new/existing ES-M specification is contained in SupplierProcedure I-A. Approved new suppliers will be added to the EngineeringMaterials Approved Source List.
