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: Copper washers including spring washers not threaded
NSN 5975-00-830-7638
NSN 5855-01-093-8202
NSN 5930-00-249-0723
NSN 5975-01-035-5238
NSN 5895-01-121-1967
NSN 5998-01-250-2887
NSN 5930-01-397-6459
NSN 6130-00-400-5774
NSN 6130-01-089-7660
NSN 5965-00-026-9408
NSN 5990-01-128-3758
NSN 5998-01-653-5581