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 5915-00-944-7670
NSN 5960-01-142-1995
NSN 5895-01-335-7281
NSN 4140-00-253-1801
NSN 5855-01-040-3881
NSN 5945-01-573-8747
NSN 5950-00-961-5918
NSN 5910-00-892-2976
NSN 5999-01-231-9728
NSN 6130-01-320-6084
NSN 5960-00-890-7046
NSN 6240-01-592-1261