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 5998-01-131-1368
NSN 6320-00-242-3300
NSN 5985-00-899-3831
NSN 6130-00-280-3696
NSN 5835-01-490-9751
NSN 6610-00-226-4710
NSN 6645-01-091-9363
NSN 6135-01-407-0594
NSN 5950-01-627-2777
NSN 6220-01-004-1152
NSN 5855-00-688-9954
NSN 5855-01-564-6511