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 7035-01-049-6776
NSN 5905-01-580-2368
NSN 5905-01-530-7694
NSN 5835-00-958-6231
NSN 6650-01-101-4339
NSN 4140-01-462-5901
NSN 6150-01-620-0932
NSN 5930-01-633-7591
NSN 5975-01-020-9860
NSN 6240-01-063-7685
NSN 5990-00-446-0518
NSN 5965-00-931-5000