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 6320-01-362-4863
NSN 7035-01-555-8793
NSN 5960-01-399-4327
NSN 5910-01-160-9278
NSN 5920-00-929-3213
NSN 5999-00-551-0835
NSN 5998-00-164-3346
NSN 5950-01-557-8199
NSN 5895-01-240-2515
NSN 5950-00-620-4395
NSN 6650-01-371-9133
NSN 6105-00-929-4385