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 2925-00-082-8219
NSN 6110-00-005-7878
NSN 6685-01-634-0611
NSN 6685-01-478-7574
NSN 5945-01-309-0996
NSN 5950-01-454-1880
NSN 5985-01-452-4086
NSN 6220-00-921-6948
NSN 4140-01-256-9871
NSN 5920-01-395-0374
NSN 6685-01-290-2935
NSN 5999-00-078-9347