MIL-B-81793/13
BEARING, BALL, ANNULAR, FOR INSTRUMENTS AND PRECISION ROTATING COMPONENTS, DEEP GROOVE, FLANGED, INNER RING EXTENDED, CHROMIUM-ALLOY STEEL, ABEC 5P
BEARING, BALL, ANNULAR, FOR INSTRUMENTS AND PRECISION ROTATING COMPONENTS, DEEP GROOVE, FLANGED, INNER RING EXTENDED, CHROMIUM-ALLOY STEEL, ABEC 5P