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 6240-01-359-7230
NSN 6320-01-585-8468
NSN 5965-00-177-2932
NSN 5905-00-143-0943
NSN 6105-00-145-2607
NSN 5895-00-276-7916
NSN 5975-01-071-2967
NSN 6685-01-238-7969
NSN 6150-01-017-8274
NSN 6620-00-496-8697
NSN 5935-01-090-0496
NSN 7035-01-512-0136