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 6620-01-361-8685
NSN 6240-01-014-5598
NSN 5996-01-121-8430
NSN 5999-01-253-5646
NSN 5925-00-876-3179
NSN 5999-01-063-7408
NSN 6150-01-400-4211
NSN 5925-01-097-7046
NSN 6220-00-157-5009
NSN 5985-00-445-5170
NSN 6650-01-388-1140
NSN 6320-01-275-3972