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 6145-01-098-4464
NSN 5855-00-466-2309
NSN 5990-01-487-0871
NSN 6650-01-367-7593
NSN 5920-01-214-0451
NSN 5895-01-406-1808
NSN 5855-01-456-0813
NSN 5965-01-170-2812
NSN 6105-00-551-3747
NSN 6320-01-450-7513
NSN 6150-01-479-1537
NSN 6135-01-139-1700