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 5835-01-090-0784
NSN 5835-00-706-0829
NSN 5935-00-554-4124
NSN 5935-00-848-2367
NSN 6620-01-583-8155
NSN 5930-00-786-0139
NSN 6645-01-344-4184
NSN 5925-01-433-2535
NSN 6645-01-442-0466
NSN 5998-01-322-7979
NSN 5990-00-428-1895
NSN 6320-00-313-9114