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 5925-01-128-6694
NSN 5975-01-369-9840
NSN 2925-01-524-6622
NSN 6645-01-423-9361
NSN 4140-01-139-4041
NSN 5985-01-500-0880
NSN 5855-01-542-9059
NSN 5930-01-634-0659
NSN 5905-01-486-2686
NSN 5925-01-356-4521
NSN 5965-00-529-0602
NSN 5999-01-105-3296