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 5960-00-533-1125
NSN 7035-00-001-4586
NSN 5935-01-221-8254
NSN 5990-01-020-6841
NSN 5920-00-676-9113
NSN 5985-00-297-7526
NSN 5920-01-406-4154
NSN 5935-00-516-5251
NSN 6110-00-502-2391
NSN 5905-01-033-7939
NSN 6685-00-406-8171
NSN 5975-01-527-7169