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 5910-01-245-2264
NSN 5998-01-173-6389
NSN 2925-01-514-6301
NSN 5925-00-576-8179
NSN 5915-00-082-1286
NSN 6620-01-442-7951
NSN 5910-00-897-1202
NSN 5998-00-143-7298
NSN 5935-01-145-3384
NSN 6610-01-382-7894
NSN 6135-00-866-2311
NSN 5895-01-444-8941