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 5990-01-507-7495
NSN 6130-01-589-4531
NSN 5910-01-507-6025
NSN 5915-00-577-6179
NSN 5945-01-167-8498
NSN 6150-01-536-9953
NSN 7035-01-457-5645
NSN 6685-01-471-8417
NSN 5999-01-073-4868
NSN 5910-01-020-7152
NSN 6150-01-634-0575
NSN 6150-00-836-9769