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 5975-01-068-4125
NSN 6610-01-202-4718
NSN 5905-00-581-7296
NSN 6685-01-415-2235
NSN 5990-01-248-8222
NSN 5925-01-379-0451
NSN 5999-01-229-1779
NSN 5915-01-393-3973
NSN 5985-01-360-8104
NSN 6320-00-174-1362
NSN 6645-01-400-2119
NSN 6150-01-214-7643