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 6135-00-519-1325
NSN 5996-01-050-6910
NSN 6320-01-082-2970
NSN 5998-01-240-8605
NSN 6135-00-967-3112
NSN 6620-00-209-0767
NSN 5855-01-213-9076
NSN 6135-00-235-1938
NSN 6645-00-121-7566
NSN 6645-01-648-4439
NSN 6320-01-399-6177
NSN 5925-00-523-9158