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 5915-01-069-2775
NSN 5905-01-213-5349
NSN 7035-01-037-1744
NSN 4140-00-924-8116
NSN 6645-01-179-0243
NSN 7035-00-981-7216
NSN 6320-00-731-6134
NSN 5915-00-865-7977
NSN 6685-01-420-6818
NSN 7035-00-931-9415
NSN 5915-01-396-0556
NSN 5855-00-337-3679