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 5930-00-086-9242
NSN 5930-00-410-8877
NSN 7035-01-428-2336
NSN 6130-01-522-8349
NSN 4140-01-438-3854
NSN 5996-00-177-8722
NSN 6130-01-146-9715
NSN 6130-01-518-7809
NSN 5950-00-208-6812
NSN 5930-00-022-7504
NSN 5835-01-532-9373
NSN 5905-00-593-9708