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 5835-00-233-6327
NSN 5855-01-307-4520
NSN 6320-00-857-4073
NSN 5855-01-585-7095
NSN 5915-01-656-6799
NSN 5990-01-264-6512
NSN 6130-01-441-2326
NSN 5960-01-503-8411
NSN 5915-01-310-1929
NSN 5965-01-384-1953
NSN 6105-01-067-7197
NSN 6150-01-659-2935