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 5998-01-440-8521
NSN 6105-00-159-0723
NSN 6105-01-121-8048
NSN 6645-01-379-7251
NSN 5996-01-594-6798
NSN 5855-00-087-7833
NSN 5990-01-548-3711
NSN 5895-00-800-3224
NSN 6610-01-437-2506
NSN 6130-01-170-8282
NSN 6610-00-753-2281
NSN 6620-01-100-0431