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 5910-01-422-2324
NSN 5935-01-525-8795
NSN 5855-00-149-0766
NSN 5895-01-650-3207
NSN 5950-00-933-5545
NSN 5985-01-417-7650
NSN 5910-00-633-7743
NSN 6685-00-553-8733
NSN 6135-00-985-7887
NSN 6240-01-592-3176
NSN 6610-01-371-3006
NSN 5999-00-020-5831