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 5950-00-891-1672
NSN 4140-00-482-7148
NSN 6135-01-579-3534
NSN 5990-01-263-9364
NSN 6620-01-254-7963
NSN 5985-01-422-1113
NSN 5965-00-997-5764
NSN 5910-01-506-1913
NSN 5950-01-283-1407
NSN 6135-01-247-5660
NSN 5965-01-392-0049
NSN 5930-00-118-8116