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 6320-01-253-9585
NSN 5945-01-585-3705
NSN 5945-00-915-1319
NSN 6645-00-479-9334
NSN 5920-01-468-0186
NSN 6105-01-055-4169
NSN 5920-01-092-6839
NSN 5998-00-246-4422
NSN 6130-01-442-6052
NSN 5945-01-355-5385
NSN 5905-01-634-0595
NSN 6620-01-412-0938