A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.
Classification: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 5895-00-904-1055
NSN 5965-00-052-9184
NSN 6320-00-779-5923
NSN 5965-00-479-9567
NSN 5990-00-252-1702
NSN 6150-01-003-8940
NSN 6650-01-317-2101
NSN 5999-00-596-8745
NSN 5996-01-089-0514
NSN 5990-01-202-7003
NSN 5915-00-452-2227
NSN 5895-01-155-2323