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 5950-01-539-5378
NSN 6220-01-434-2497
NSN 5935-00-008-8268
NSN 5999-00-375-6147
NSN 6110-01-442-4144
NSN 5920-00-555-1877
NSN 7035-00-177-1557
NSN 6145-01-632-1083
NSN 2925-01-202-7235
NSN 5910-01-231-8416
NSN 5910-00-021-9415
NSN 7035-01-426-4133