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 5950-01-132-9125
NSN 5905-01-064-5811
NSN 6150-01-040-8729
NSN 5999-01-423-9876
NSN 6620-00-273-8735
NSN 5925-01-440-4977
NSN 2925-00-707-6770
NSN 5960-01-237-8995
NSN 5915-01-593-8937
NSN 7035-01-062-1692
NSN 6135-01-238-2878
NSN 5975-01-054-1834