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: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 5920-01-485-8157
NSN 6240-01-148-7844
NSN 5960-00-111-8456
NSN 6150-01-651-5435
NSN 5910-01-425-3281
NSN 6685-00-888-6728
NSN 6220-01-266-8990
NSN 6220-01-487-7690
NSN 5920-00-555-1877
NSN 4140-01-067-4317
NSN 5925-00-406-6398
NSN 6685-01-443-0596