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 5945-01-068-4471
NSN 6320-01-495-1244
NSN 6150-01-014-7969
NSN 5905-01-089-8425
NSN 5960-01-245-6088
NSN 5835-01-642-4705
NSN 6135-00-819-8074
NSN 4140-01-188-0111
NSN 2925-01-190-0510
NSN 5920-01-158-4517
NSN 5895-00-311-8969
NSN 6110-01-406-4818