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 6240-00-469-6242
NSN 5925-01-047-8884
NSN 5975-00-705-6645
NSN 6220-00-251-0701
NSN 5999-01-415-5716
NSN 5960-01-450-8539
NSN 5930-00-596-9276
NSN 6610-01-192-6478
NSN 5950-01-383-4333
NSN 6320-01-412-2973
NSN 5999-00-943-5525
NSN 6240-01-438-1157