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 6220-01-593-7209
NSN 6645-00-938-2173
NSN 5998-00-587-7081
NSN 6105-00-270-6992
NSN 6685-01-386-3110
NSN 5996-00-619-1877
NSN 6320-01-006-6138
NSN 6130-01-417-2885
NSN 5999-01-647-8497
NSN 5905-01-065-1663
NSN 7035-00-142-9076
NSN 5965-01-495-0316