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 2925-00-964-7128
NSN 7035-01-359-7460
NSN 5910-01-200-7324
NSN 5950-01-318-1155
NSN 6685-01-039-4695
NSN 5985-00-173-3545
NSN 5855-00-951-6483
NSN 6240-00-999-7806
NSN 5950-01-474-6085
NSN 5835-01-108-4980
NSN 5990-01-608-3505
NSN 6150-01-199-5351