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 5920-01-097-7526
NSN 5950-00-987-4757
NSN 6240-01-158-9299
NSN 5905-00-487-1671
NSN 2925-01-364-7926
NSN 5965-01-095-9767
NSN 5985-00-408-8669
NSN 6110-01-376-7253
NSN 5925-01-263-0857
NSN 6130-01-556-2464
NSN 6145-00-455-2809
NSN 5905-01-383-9782