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 2925-01-333-6346
NSN 6135-01-348-8264
NSN 6130-00-469-4604
NSN 6145-00-310-7443
NSN 6135-00-235-1938
NSN 5965-00-228-8336
NSN 5999-00-451-7627
NSN 6645-01-301-5563
NSN 5925-00-473-2622
NSN 6685-00-753-0668
NSN 5998-01-494-5127
NSN 5950-01-515-8409