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 6610-01-522-3345
NSN 6320-00-905-0543
NSN 5905-00-937-3394
NSN 6105-01-423-4980
NSN 5920-00-727-1452
NSN 5925-00-891-4079
NSN 5855-01-506-6767
NSN 5999-01-429-0149
NSN 6620-00-167-0963
NSN 5990-01-150-7443
NSN 5925-01-204-9441
NSN 6645-00-634-9317