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 6145-00-918-3187
NSN 5925-00-857-4329
NSN 6105-01-227-3003
NSN 5855-01-337-0245
NSN 6145-01-062-9820
NSN 5905-00-267-9551
NSN 2925-01-174-6786
NSN 6105-01-507-7442
NSN 6220-00-017-3900
NSN 6130-01-210-3368
NSN 4140-00-849-9295
NSN 7035-01-644-2039