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 6220-00-225-0549
NSN 7035-01-426-4133
NSN 6645-01-063-8243
NSN 2925-01-325-3974
NSN 5985-00-177-6831
NSN 6130-01-499-3488
NSN 6130-00-730-7411
NSN 6240-00-260-0399
NSN 6130-01-361-8628
NSN 5950-01-433-6508
NSN 6130-00-960-9158
NSN 5895-00-300-3214