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 6685-01-556-3449
NSN 5895-00-353-1795
NSN 6150-01-174-8341
NSN 6620-01-441-0240
NSN 6135-01-396-0704
NSN 2925-01-470-5534
NSN 5998-01-278-0740
NSN 6610-01-339-1595
NSN 5999-00-799-5644
NSN 5910-01-356-9251
NSN 5930-00-278-7731
NSN 6620-00-992-5876