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 6110-01-286-2294
NSN 5996-00-202-6576
NSN 5960-00-960-6805
NSN 6110-01-112-0675
NSN 6685-01-364-1025
NSN 6145-00-490-9180
NSN 6320-01-643-0850
NSN 6220-00-624-9028
NSN 5975-00-596-4716
NSN 5920-01-099-0963
NSN 6610-00-905-0210
NSN 5950-00-885-5713