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 5895-00-186-8572
NSN 5910-01-226-3447
NSN 5998-01-433-3216
NSN 5998-00-339-9223
NSN 5990-01-056-6413
NSN 5975-00-156-5737
NSN 5935-01-426-2049
NSN 5895-01-004-9861
NSN 5925-01-204-9441
NSN 6645-01-384-7791
NSN 2925-00-909-2596
NSN 4140-01-438-7938