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 5915-01-470-0057
NSN 6685-01-350-0337
NSN 5996-01-188-7934
NSN 6110-01-213-1753
NSN 5905-01-116-2689
NSN 5930-01-464-3106
NSN 6620-01-486-8002
NSN 7035-01-017-2702
NSN 5998-00-100-0162
NSN 6610-00-556-1870
NSN 5999-01-410-8369
NSN 6645-01-476-8013