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 6610-01-064-0384
NSN 6320-01-082-2970
NSN 5990-01-609-4793
NSN 6145-01-581-6020
NSN 2925-01-179-2648
NSN 5999-01-626-1021
NSN 2925-01-008-5696
NSN 5910-01-124-0096
NSN 5985-00-245-0240
NSN 5950-00-060-6390
NSN 5945-01-139-4260
NSN 2925-00-221-8529