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 5996-01-483-7845
NSN 6610-01-381-3181
NSN 6650-01-236-5916
NSN 5985-01-503-2719
NSN 5996-00-007-5753
NSN 5996-01-444-3915
NSN 6685-01-618-8098
NSN 6135-01-512-8740
NSN 4140-01-473-2922
NSN 5855-01-020-7982
NSN 5935-01-429-7182
NSN 6650-00-475-7746