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 6240-01-560-3370
NSN 5985-01-114-6847
NSN 6240-01-559-0684
NSN 5975-01-266-3582
NSN 5895-00-958-7607
NSN 5999-00-001-3656
NSN 4140-00-287-5476
NSN 5930-01-297-4393
NSN 5985-00-937-6719
NSN 6130-01-357-6602
NSN 5990-01-395-4194
NSN 6685-01-010-8478