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 5950-00-227-7290
NSN 5855-00-298-0261
NSN 7035-00-981-5425
NSN 5855-00-586-6255
NSN 5910-00-230-4427
NSN 5975-01-144-8131
NSN 6610-00-400-1202
NSN 6150-01-324-5984
NSN 5935-01-030-6286
NSN 5935-00-059-5404
NSN 6685-00-281-9148
NSN 5935-01-211-5763