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 5996-01-216-0702
NSN 6220-01-462-0236
NSN 5996-00-471-0540
NSN 5975-00-211-7124
NSN 6685-01-231-9583
NSN 6645-00-736-0476
NSN 5935-01-245-9377
NSN 6240-01-544-9579
NSN 6135-00-437-5182
NSN 6320-01-388-9450
NSN 5990-01-286-0601
NSN 6145-00-149-9195