MIL-R-83248/2 (AMENDMENT-1), MILITARY SPECIFICATION: RUBBER, FLUOROCARBON ELASTOMER, HIGH TEMPERATURE, FLUID AND COMPRESSION SET RESISTANT (O-RINGS, CLASS 2, 90 HARDNESS) (08-NOV-1973) [S/S BY SAE-AS3581 AND SAE-AMS7259]
MIL-R-83248/2 (AMENDMENT-1), MILITARY SPECIFICATION: RUBBER, FLUOROCARBON ELASTOMER, HIGH TEMPERATURE, FLUID AND COMPRESSION SET RESISTANT (O-RINGS, CLASS 2, 90 HARDNESS) (08-NOV-1973) [S/S BY SAE-AS3581 AND SAE-AMS7259].