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 5930-01-099-1032
NSN 5965-01-650-6481
NSN 6620-01-401-5356
NSN 5855-00-532-0025
NSN 5990-00-263-1289
NSN 5895-01-634-0630
NSN 5930-01-085-8553
NSN 6645-00-108-6479
NSN 6150-00-234-6475
NSN 6240-00-989-4398
NSN 6220-00-940-0625
NSN 6620-01-319-9804