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 5960-01-458-6484
NSN 5965-00-170-5254
NSN 6145-00-927-3187
NSN 5930-01-306-5063
NSN 6105-01-362-9367
NSN 6620-00-947-3889
NSN 6685-00-443-3271
NSN 5996-01-565-8951
NSN 5999-00-226-2001
NSN 6610-01-609-7776
NSN 5975-00-703-4397
NSN 5855-01-085-5354