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 5996-01-612-8965
NSN 5905-01-129-7352
NSN 5945-01-485-6605
NSN 6610-00-515-3987
NSN 6650-01-449-2334
NSN 5895-01-572-7359
NSN 5985-00-427-6469
NSN 6620-01-277-9325
NSN 6650-00-272-2271
NSN 2925-01-327-3069
NSN 6150-01-313-0323
NSN 5985-01-610-4295