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 6110-01-430-3684
NSN 5920-00-373-3636
NSN 6685-00-283-6107
NSN 2925-00-351-1015
NSN 5990-00-993-3130
NSN 5895-00-525-3295
NSN 5910-00-594-0221
NSN 6610-00-876-7860
NSN 5905-01-222-5018
NSN 6240-01-292-3729
NSN 6620-00-578-5851
NSN 5930-01-144-5417