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 5835-01-113-4604
NSN 6240-01-109-4680
NSN 6240-01-593-4728
NSN 6110-01-439-5852
NSN 5998-01-422-1117
NSN 6105-01-412-3257
NSN 6135-01-050-3194
NSN 6110-00-959-7002
NSN 5835-01-089-1076
NSN 2925-00-620-7757
NSN 5930-01-514-0273
NSN 6620-01-412-0938