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 6645-00-383-7783
NSN 6145-00-156-4394
NSN 5935-01-330-7528
NSN 6145-01-085-6799
NSN 5835-00-554-0399
NSN 5950-01-358-7814
NSN 5996-01-438-0323
NSN 6240-01-457-7490
NSN 5990-01-061-5618
NSN 6150-00-875-0739
NSN 5915-01-644-6048
NSN 6220-00-981-1295