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 2925-01-423-3003
NSN 6220-01-434-7506
NSN 5855-00-930-9478
NSN 5985-01-345-9293
NSN 5930-01-625-4805
NSN 5920-01-640-9556
NSN 5910-01-555-7751
NSN 2925-01-612-0405
NSN 6110-00-271-9928
NSN 5975-00-580-0434
NSN 5996-01-472-6174
NSN 6135-01-559-5417