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 6110-01-059-0617
NSN 5999-01-067-9057
NSN 5835-00-198-4936
NSN 5935-01-381-6025
NSN 6610-00-870-4325
NSN 6110-01-453-1611
NSN 5905-01-169-6374
NSN 6610-00-565-9758
NSN 6135-01-481-7400
NSN 4140-00-449-7345
NSN 5915-01-231-9174
NSN 6320-00-313-9114