Special Features:

C/bore feature-not incl.; grooved face-not provided; antistatic spring-not incl.; surface treat.-zinc plated; wdth across flats 3.000 in.; flats q type 6; inside thd: 4.000 in.-16 un rh

Properties:

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.