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 6620-00-959-6614
NSN 5965-00-763-8015
NSN 6220-00-708-9909
NSN 5998-01-142-0579
NSN 5950-01-073-1825
NSN 5999-01-357-9678
NSN 6240-01-614-5994
NSN 7035-00-435-8705
NSN 6105-01-176-5708
NSN 4140-01-530-0727
NSN 6610-00-794-4967
NSN 5835-00-275-0584