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 5996-00-960-7810
NSN 4140-01-234-5114
NSN 5915-01-564-0972
NSN 2925-00-808-5077
NSN 7035-00-134-3143
NSN 6610-01-227-0364
NSN 5905-00-664-4218
NSN 7035-01-467-9030
NSN 5950-01-462-2633
NSN 5895-00-937-7227
NSN 5905-01-266-0002
NSN 6135-01-416-8342