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 5895-00-554-4573
NSN 6645-00-244-0359
NSN 5835-01-004-8997
NSN 5990-00-396-8338
NSN 5999-00-115-1084
NSN 4140-01-456-5685
NSN 6650-01-495-1269
NSN 5985-01-346-1388
NSN 6220-01-211-8419
NSN 6620-01-414-4578
NSN 5975-01-504-5328
NSN 4140-01-398-8180