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 6610-01-229-3679
NSN 5925-01-317-3869
NSN 5930-01-143-6278
NSN 6240-00-407-1024
NSN 5945-01-242-6012
NSN 5965-01-474-5654
NSN 6650-01-220-3842
NSN 6610-01-102-0194
NSN 6220-01-256-9835
NSN 6145-01-023-3135
NSN 6620-00-425-7475
NSN 6650-01-595-6102