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 6240-00-787-8329
NSN 5965-01-416-8836
NSN 5855-01-053-0679
NSN 5935-00-269-5516
NSN 2925-01-043-9786
NSN 2925-00-192-1166
NSN 5965-01-023-0809
NSN 5935-01-156-5794
NSN 6130-00-293-4714
NSN 5930-00-934-1713
NSN 5935-00-372-5261
NSN 6610-01-616-8852