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 6240-00-409-8670
NSN 6645-01-288-3300
NSN 5915-00-445-3287
NSN 6150-00-653-6427
NSN 6135-01-398-5922
NSN 5990-01-093-0836
NSN 6150-00-146-3746
NSN 5996-00-392-7626
NSN 5965-01-299-8690
NSN 6610-00-661-1797
NSN 6320-01-259-2604
NSN 5975-01-167-8515