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 6105-01-471-3763
NSN 5895-01-028-5344
NSN 6685-01-460-5538
NSN 4140-00-905-2081
NSN 6320-01-185-3857
NSN 5965-01-073-1014
NSN 5975-01-225-5616
NSN 5930-00-866-6888
NSN 6135-01-633-8502
NSN 6645-01-459-7788
NSN 5990-01-234-8646
NSN 6645-00-171-9639