Width across flats: 2.25 in. Nom; outside thread characteristics: 3.125 in.-16 n rh
A cap, usually of metal, designed to retain lubricant and excludes foreign matter from bearings. It is normally used as an end closure on items designed to rotate on a shaft,such as a wheel hub, or fit into a housing at the end of a rotating shaft, or the like. Do not use if a more specific name applies. For items mounted by bolt holes, see cover, access.
Classification: Crown corks (including crown seals and caps), and parts thereof, of base metal
NSN 6650-01-157-8806
NSN 5930-00-626-8688
NSN 6110-01-394-2599
NSN 5855-01-093-8202
NSN 5945-00-190-2116
NSN 5945-00-690-5671
NSN 5950-01-359-4385
NSN 6610-00-960-9135
NSN 6685-01-148-8138
NSN 4140-01-391-4074
NSN 5965-01-572-2937
NSN 6685-01-620-6439