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 6135-00-951-3426
NSN 6685-00-407-1028
NSN 5998-01-113-7067
NSN 6130-01-413-8741
NSN 6645-01-443-4854
NSN 6650-01-073-1738
NSN 5996-01-608-5244
NSN 6610-00-896-4914
NSN 5960-01-614-0489
NSN 5855-00-079-2370
NSN 5965-00-925-1725
NSN 6220-00-052-0700