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 7035-01-254-3606
NSN 6130-01-331-3448
NSN 6130-00-738-2071
NSN 6145-01-286-9847
NSN 6150-00-596-9882
NSN 5975-01-353-3194
NSN 5895-01-353-1595
NSN 5990-00-983-1813
NSN 5920-01-327-4797
NSN 6620-00-869-9307
NSN 6320-01-116-3980
NSN 6135-01-039-2882