Special Features:

C/bore-not incl.; grooved face-not provided; antistatic spring-not incl.; surface treat.-phosphate mil-p-16232 ty2, cl1 and primer paint tt-p-636; taper minor diameter 2.908/2.916 in.; taper major diameter 2.989/3.000 in.; wdth across flats 2.062 in.; flats q type 6; outside thd: 3-13ns-2 spl.; matl-iron fe0132 or steel st1720; supplementary quality assurance provision (sqaps)are req'd for this item(sqap number same as part no.)

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.