MS21443B (NOTICE 1), MILITARY STANDARD: BEARING, BALL, AIRFRAME, ANTI-FRICTION, PULLEY (23 JUL 1998) [SUPERSEDED BY SAE-AS21443]
MS21443B (NOTICE 1), MILITARY STANDARD: BEARING, BALL, AIRFRAME, ANTI-FRICTION, PULLEY (23 JUL 1998) [SUPERSEDED BY SAE-AS21443].