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 5985-00-554-4599
NSN 5945-01-460-9115
NSN 5925-01-526-3328
NSN 6610-01-353-6685
NSN 5930-01-533-7467
NSN 6610-01-485-3074
NSN 5996-00-452-2187
NSN 5835-00-604-2026
NSN 5945-01-314-5901
NSN 6145-00-199-8066
NSN 5990-01-587-8562
NSN 5990-01-333-2294