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 6150-01-622-4561
NSN 5855-00-821-7512
NSN 5895-01-272-5619
NSN 6220-01-594-3563
NSN 5915-00-888-4379
NSN 6685-00-269-6444
NSN 6620-01-472-6461
NSN 5895-00-068-6175
NSN 6110-00-331-8472
NSN 5855-01-299-8637
NSN 6320-00-853-1920
NSN 6130-01-580-7818