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 6645-01-265-2746
NSN 5950-00-318-2711
NSN 5965-00-217-2476
NSN 6645-00-121-7566
NSN 6220-01-500-1857
NSN 6110-01-543-5125
NSN 6240-01-505-5890
NSN 5920-00-929-8095
NSN 6685-01-102-1652
NSN 5996-00-059-4635
NSN 6320-01-449-1014
NSN 6145-01-562-3451