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 5950-01-316-3001
NSN 6110-01-050-1283
NSN 5999-00-600-5380
NSN 5920-01-463-9238
NSN 5998-00-772-9383
NSN 6135-00-938-1351
NSN 5855-01-584-8458
NSN 7035-01-605-3375
NSN 5910-00-260-6944
NSN 5990-01-529-7307
NSN 5935-00-094-6862
NSN 5925-01-343-0831