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 5905-01-095-6331
NSN 6650-01-391-7527
NSN 5999-01-607-1362
NSN 5998-01-265-7077
NSN 5855-00-560-0110
NSN 5975-01-229-8786
NSN 5960-00-937-6853
NSN 5925-01-219-2980
NSN 5985-01-258-4769
NSN 6620-01-346-9340
NSN 5990-01-147-5225
NSN 5935-01-213-7384