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 5855-00-631-4565
NSN 5975-01-065-2953
NSN 5915-00-256-0040
NSN 5855-00-986-9708
NSN 6145-00-481-1954
NSN 5915-01-323-7358
NSN 5855-01-481-3906
NSN 5920-00-705-2916
NSN 6650-00-498-2416
NSN 6110-00-525-3418
NSN 5915-01-111-1363
NSN 6650-01-106-1868