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 5895-01-481-6461
NSN 4140-01-508-1518
NSN 5930-00-924-5601
NSN 5950-01-463-2509
NSN 4140-01-150-4895
NSN 5835-01-263-1293
NSN 5990-00-804-4982
NSN 6320-01-578-6006
NSN 6240-01-069-2688
NSN 6150-01-521-9242
NSN 6685-01-324-1970
NSN 6610-01-400-3880