MIL-B-3990D, MILITARY SPECIFICATION: BEARINGS, ROLLER, NEEDLE, AIRFRAME, ANTIFRICTION, INCH (28-JAN-1977) [S/S BY SAE-AS39901]

MIL-B-3990D, MILITARY SPECIFICATION: BEARINGS, ROLLER, NEEDLE, AIRFRAME, ANTIFRICTION, INCH (28-JAN-1977) [S/S BY SAE-AS39901]., This specification covers the requirements for non-separable, antifriction needle bearings.