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 6105-01-145-2681
NSN 4140-00-155-8012
NSN 4140-01-476-7526
NSN 6130-01-607-2997
NSN 4140-01-231-5031
NSN 5950-00-186-0682
NSN 5990-01-442-3520
NSN 5925-01-044-5508
NSN 5945-01-645-4780
NSN 5998-01-214-2860
NSN 7035-00-803-3056
NSN 6130-01-578-8226