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 6685-01-093-4682
NSN 5950-01-030-1414
NSN 2925-01-307-2637
NSN 5965-01-467-7974
NSN 5998-01-527-7644
NSN 7035-01-338-2994
NSN 7035-01-453-3061
NSN 2925-01-362-2515
NSN 6220-01-626-1074
NSN 5930-01-382-9372
NSN 5935-01-547-2588
NSN 5996-01-495-0763