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 6145-01-394-3122
NSN 6685-00-659-7831
NSN 5990-00-870-0656
NSN 5895-01-525-5974
NSN 6610-01-539-9084
NSN 6645-01-220-2838
NSN 6110-00-514-2639
NSN 5998-01-238-9370
NSN 6320-01-571-8974
NSN 5925-01-359-4080
NSN 5990-01-013-8464
NSN 5835-01-538-8080