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 6685-00-554-3825
NSN 6240-01-071-7446
NSN 5895-00-709-2617
NSN 6620-00-139-5447
NSN 6620-01-345-1336
NSN 5999-01-463-0412
NSN 6650-01-392-8086
NSN 6645-00-061-8033
NSN 5925-00-972-9984
NSN 5950-01-216-5383
NSN 6610-01-128-2428
NSN 5915-01-389-3254