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 5835-01-074-7593
NSN 6620-01-595-1060
NSN 2925-00-844-2789
NSN 5990-01-517-7848
NSN 5975-01-540-6758
NSN 2925-01-242-2309
NSN 5996-00-824-4709
NSN 6620-01-141-5747
NSN 5930-01-097-1841
NSN 5996-01-112-7385
NSN 4140-01-025-1555
NSN 5925-01-462-5933