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 5920-01-619-8819
NSN 6220-01-376-9287
NSN 7035-01-391-7470
NSN 5950-00-716-7595
NSN 6320-01-039-5891
NSN 5905-00-006-7642
NSN 6110-00-022-2555
NSN 5965-00-106-3195
NSN 6320-00-405-2348
NSN 5999-01-412-6503
NSN 6105-01-428-2596
NSN 5855-00-937-7709