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 5855-01-233-2767
NSN 6110-01-574-6466
NSN 6135-00-935-2589
NSN 6685-00-726-8146
NSN 6105-00-851-5396
NSN 6130-01-435-5745
NSN 6645-01-087-7345
NSN 6145-01-646-9409
NSN 5855-01-409-1792
NSN 4140-00-669-6109
NSN 5998-00-796-9367
NSN 5950-01-376-7323