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 6145-01-541-1213
NSN 6135-00-900-2139
NSN 7035-00-763-6180
NSN 5998-01-065-5785
NSN 5855-00-145-3307
NSN 5930-00-557-1968
NSN 6645-00-200-2322
NSN 5998-01-116-2066
NSN 5950-01-351-0517
NSN 5855-01-462-5150
NSN 6685-01-373-6658
NSN 6135-01-648-4875