MIL-B-81793D (SUPPLEMENT-1), MILITARY SPECIFICATION: BEARINGS, BALL, ANNULAR, FOR INSTRUMENTS AND PRECISION ROTATING COMPONENTS (15-MAR-1993)
MIL-B-81793D (SUPPLEMENT-1), MILITARY SPECIFICATION: BEARINGS, BALL, ANNULAR, FOR INSTRUMENTS AND PRECISION ROTATING COMPONENTS (15-MAR-1993).