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 2925-01-196-6187
NSN 5960-01-077-4553
NSN 5930-00-999-4889
NSN 5990-01-239-5878
NSN 5910-01-209-0636
NSN 6135-01-388-2761
NSN 6685-01-435-4366
NSN 5925-01-543-2640
NSN 5910-00-127-3849
NSN 5895-00-150-2347
NSN 5998-00-374-8876
NSN 6135-01-260-7180