A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. 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: Copper washers including spring washers not threaded
NSN 6620-01-032-3937
NSN 4140-00-758-6732
NSN 5905-01-527-1372
NSN 5990-01-027-0568
NSN 5895-01-442-3466
NSN 5895-01-273-2789
NSN 5950-01-317-7726
NSN 6150-00-500-0275
NSN 6650-00-778-2949
NSN 6150-01-510-0529
NSN 5925-01-570-2358
NSN 5960-01-420-4744