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 5985-01-371-9749
NSN 5996-00-413-4416
NSN 6145-01-023-1526
NSN 5996-01-173-3202
NSN 5855-00-688-9954
NSN 6685-01-503-0314
NSN 6645-01-408-0011
NSN 6645-01-212-6457
NSN 6145-01-229-4136
NSN 5950-01-323-7170
NSN 5975-01-235-1962
NSN 5935-01-191-2921