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 5935-01-546-2161
NSN 5835-01-459-8664
NSN 5930-01-559-5407
NSN 5998-01-014-9663
NSN 5925-01-135-5272
NSN 6110-00-141-1966
NSN 5998-00-106-6846
NSN 5855-00-079-2370
NSN 5990-00-082-3107
NSN 6685-00-151-5257
NSN 5996-00-538-6069
NSN 5895-01-581-9185