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 5910-00-951-4221
NSN 5985-01-104-5288
NSN 5835-00-400-5056
NSN 6650-00-866-7060
NSN 5930-01-626-6683
NSN 6150-00-596-9882
NSN 6685-01-003-5238
NSN 5935-00-302-1749
NSN 5999-01-417-7132
NSN 6145-01-578-8284
NSN 6135-01-010-0891
NSN 5975-00-498-4188