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 5950-01-188-7776
NSN 6240-01-213-1449
NSN 6220-01-434-3386
NSN 6620-01-616-9808
NSN 6220-01-024-9444
NSN 2925-01-320-0965
NSN 5925-01-463-8594
NSN 6610-00-893-5776
NSN 6645-00-130-6419
NSN 5935-01-111-3987
NSN 6220-00-202-8591
NSN 5996-00-909-4753