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 2925-01-250-2731
NSN 6320-00-977-3930
NSN 5910-00-248-4039
NSN 5990-01-183-1897
NSN 5925-01-347-8185
NSN 5835-01-258-5597
NSN 6650-01-118-2222
NSN 5835-01-171-9126
NSN 6320-00-583-3104
NSN 6685-01-513-3737
NSN 5905-00-235-9752
NSN 5985-01-042-9967