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 6650-00-266-6808
NSN 5930-00-242-6914
NSN 5835-00-427-2772
NSN 6685-01-230-5682
NSN 5915-01-605-3157
NSN 6610-00-516-4228
NSN 5960-00-348-3015
NSN 5935-00-233-9894
NSN 7035-00-145-9138
NSN 5965-01-612-3799
NSN 5855-01-364-8193
NSN 5945-00-644-9706