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 5895-01-198-7499
NSN 5855-01-380-9950
NSN 6220-01-384-0571
NSN 7035-00-549-2722
NSN 6240-00-452-5241
NSN 5960-00-682-3598
NSN 6320-01-426-1324
NSN 6145-01-220-6640
NSN 4140-01-202-9563
NSN 5950-01-547-1863
NSN 5999-01-141-6859
NSN 6220-00-710-7289