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 2925-01-143-0092
NSN 6110-01-369-4186
NSN 5960-01-219-5504
NSN 5895-01-383-0992
NSN 5950-01-332-3051
NSN 6240-00-244-0483
NSN 5855-00-688-9954
NSN 6240-00-541-7032
NSN 6645-00-810-7229
NSN 2925-01-521-0600
NSN 5990-01-590-4515
NSN 6650-01-480-7754