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 5999-00-277-4257
NSN 5915-01-486-2527
NSN 5996-00-187-1424
NSN 5925-00-990-2442
NSN 5905-01-057-0288
NSN 5920-01-088-8312
NSN 6610-00-186-9180
NSN 7035-01-277-8493
NSN 5930-01-375-0737
NSN 5996-01-120-5067
NSN 5945-00-606-8874
NSN 7035-01-204-7481