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 6150-01-441-4740
NSN 5950-01-646-7192
NSN 5996-01-010-4333
NSN 2925-00-516-8841
NSN 5920-01-234-8309
NSN 7035-01-423-8343
NSN 5975-00-518-1733
NSN 6130-01-312-8449
NSN 5945-00-679-9554
NSN 7035-01-245-9585
NSN 6610-01-606-8788
NSN 5915-01-105-0369