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 6620-00-467-7414
NSN 6645-01-311-9006
NSN 5965-00-549-0220
NSN 5975-01-024-8486
NSN 6610-00-199-8915
NSN 5895-01-105-8336
NSN 5965-01-500-2468
NSN 6650-00-908-6358
NSN 5945-01-065-2854
NSN 6645-01-550-9669
NSN 6645-01-300-9485
NSN 6110-00-205-1778