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 5920-00-554-0437
NSN 5910-01-014-2930
NSN 5895-00-108-8474
NSN 5930-00-679-9076
NSN 2925-01-197-7864
NSN 2925-00-764-0167
NSN 5945-00-822-9618
NSN 6110-01-339-8071
NSN 5905-00-030-5557
NSN 5920-01-119-9216
NSN 6645-01-514-7901
NSN 5935-01-136-5362