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 6220-00-635-4424
NSN 5835-01-261-2978
NSN 5945-01-463-8708
NSN 5999-00-113-1996
NSN 5960-01-098-8437
NSN 4140-01-282-7586
NSN 5895-01-173-3142
NSN 6620-01-411-9489
NSN 6320-01-600-5808
NSN 5925-00-840-7058
NSN 5965-01-444-3098
NSN 2925-00-764-0167