A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 6240-00-752-2581
NSN 6650-01-024-9554
NSN 5930-01-528-9488
NSN 6685-01-215-1204
NSN 5975-01-033-1284
NSN 5998-01-444-8136
NSN 5925-01-476-7536
NSN 2925-01-412-9520
NSN 7035-01-024-8067
NSN 6110-00-189-7489
NSN 6320-01-029-4220
NSN 6130-01-257-5719