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 6150-00-155-8511
NSN 5985-00-080-1382
NSN 6150-01-100-3413
NSN 6105-01-569-0750
NSN 5905-01-067-9398
NSN 2925-01-063-7876
NSN 5920-01-407-0116
NSN 6130-01-422-0563
NSN 6220-00-902-5112
NSN 5990-01-311-7491
NSN 5910-01-089-9680
NSN 5920-01-307-2651