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 6620-01-328-6621
NSN 6135-01-579-3534
NSN 5996-00-304-9897
NSN 5905-01-492-0009
NSN 5920-00-152-4003
NSN 6150-00-732-3370
NSN 6320-00-456-0836
NSN 5895-00-814-5244
NSN 5930-00-933-1788
NSN 5935-01-518-4241
NSN 2925-01-424-0235
NSN 5950-00-033-0349