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 5925-01-204-6888
NSN 6620-00-652-9696
NSN 6645-01-515-4812
NSN 5965-01-420-6613
NSN 6685-00-434-9156
NSN 5910-00-608-0992
NSN 5915-01-339-7060
NSN 6105-00-497-0149
NSN 5855-00-532-0025
NSN 6110-01-143-0742
NSN 5910-01-246-0462
NSN 6645-00-586-7198