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 5960-01-384-1300
NSN 5910-01-221-0336
NSN 6220-01-339-7557
NSN 5905-01-100-6747
NSN 6240-00-681-2795
NSN 5945-01-392-1068
NSN 5835-00-366-0240
NSN 4140-01-611-4667
NSN 6150-01-215-6005
NSN 2925-01-541-5031
NSN 6610-01-400-3880
NSN 5930-00-092-8757