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 5895-01-231-2617
NSN 6685-00-435-4023
NSN 5965-01-027-6554
NSN 6610-00-556-1870
NSN 6105-01-252-8847
NSN 2925-00-644-0028
NSN 5945-00-540-8178
NSN 6130-00-911-6523
NSN 6145-01-534-6168
NSN 6610-01-222-7593
NSN 6685-01-574-9634
NSN 5985-01-009-2872