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 6645-00-089-6156
NSN 2925-00-596-9775
NSN 6110-01-423-7432
NSN 5945-01-627-2107
NSN 6610-01-464-3037
NSN 6130-01-381-2238
NSN 5930-00-445-6328
NSN 6130-01-171-9170
NSN 2925-01-497-9381
NSN 6620-00-378-3070
NSN 6645-01-400-2119
NSN 5998-01-435-0441