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 4140-00-917-4308
NSN 5925-01-435-8109
NSN 5950-00-977-5295
NSN 6645-01-432-7943
NSN 5975-00-732-7911
NSN 5925-00-839-7038
NSN 5975-01-407-4174
NSN 5925-00-829-4897
NSN 6645-01-211-6502
NSN 5999-01-299-4798
NSN 5950-00-775-4088
NSN 5930-01-433-5811