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 5960-01-179-4009
NSN 6650-01-502-6761
NSN 6685-01-389-7458
NSN 6150-01-434-1244
NSN 6110-01-090-5094
NSN 5930-01-157-9675
NSN 7035-01-469-0109
NSN 6610-01-184-3210
NSN 5930-00-633-0213
NSN 6650-01-544-9137
NSN 6130-01-400-0736
NSN 5965-01-564-8876