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 5945-01-485-2402
NSN 6620-00-643-1402
NSN 5920-00-083-6858
NSN 2925-01-271-8727
NSN 6650-01-186-2426
NSN 5895-01-496-8817
NSN 5925-00-250-0698
NSN 5999-01-141-7721
NSN 5945-01-593-0056
NSN 6105-01-352-0058
NSN 5945-01-335-1912
NSN 6645-00-171-1883