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 5985-01-579-7689
NSN 6650-01-567-0455
NSN 5855-01-191-3404
NSN 6105-00-038-7518
NSN 5905-01-554-1290
NSN 5998-01-395-2739
NSN 6620-01-157-9267
NSN 6220-00-806-7666
NSN 5975-00-248-5590
NSN 6320-01-021-6633
NSN 5835-00-540-9669
NSN 5930-01-634-0659