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 6650-00-411-7132
NSN 6220-01-139-7340
NSN 6145-01-390-4204
NSN 6105-01-595-4215
NSN 5920-00-010-6652
NSN 5996-01-589-3984
NSN 5945-01-583-9142
NSN 6220-01-251-6774
NSN 5975-00-556-2146
NSN 2925-01-231-6312
NSN 5895-01-068-4764
NSN 5895-01-398-3291