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 5996-00-176-0999
NSN 2925-01-527-7216
NSN 5990-01-052-0099
NSN 6240-01-393-9666
NSN 6320-01-425-1417
NSN 5996-01-371-2958
NSN 5996-00-243-6962
NSN 5935-01-216-5064
NSN 5925-00-136-0977
NSN 5975-01-294-1064
NSN 5920-00-140-8912
NSN 5985-01-552-0960