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 5930-01-395-0375
NSN 5835-01-085-5487
NSN 5965-00-752-5764
NSN 6105-01-579-2813
NSN 5910-00-103-9681
NSN 5998-01-626-1225
NSN 6220-01-293-2628
NSN 6135-00-985-7846
NSN 5835-01-340-1604
NSN 6110-00-984-4273
NSN 6320-01-607-1491
NSN 5920-01-177-9200