Cage calls this: nylon shouldered washer
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: Gaskets,washers & other seals
NSN 5920-00-594-3124
NSN 5935-01-574-6958
NSN 5855-00-337-3679
NSN 6240-01-097-2831
NSN 5925-01-275-6522
NSN 5855-01-144-2939
NSN 6150-01-295-1969
NSN 6145-01-100-8565
NSN 5895-01-017-3781
NSN 5935-01-232-7344
NSN 5920-01-140-7297
NSN 5996-01-400-1640