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 5965-01-602-6760
NSN 6320-01-301-4699
NSN 6110-01-040-1780
NSN 6685-00-276-9889
NSN 5960-01-259-3846
NSN 5945-00-492-5876
NSN 5905-01-073-2525
NSN 5975-00-913-4762
NSN 5925-01-046-9213
NSN 6320-01-435-5991
NSN 6135-00-753-2276
NSN 6135-01-416-8342