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 5945-01-448-9340
NSN 4140-01-205-0197
NSN 6105-01-042-5688
NSN 6240-01-019-8068
NSN 5910-01-398-3238
NSN 6145-00-112-9476
NSN 6220-01-104-1447
NSN 5910-01-391-7774
NSN 5999-01-535-6377
NSN 5895-01-331-4842
NSN 5910-01-129-4463
NSN 6645-01-047-1782