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 6320-01-046-5228
NSN 6110-01-056-4964
NSN 6105-00-252-3233
NSN 5930-00-079-0171
NSN 5895-01-451-3866
NSN 6130-00-883-8129
NSN 6645-01-170-5402
NSN 5950-01-009-2031
NSN 6610-00-951-4451
NSN 5855-01-321-3881
NSN 5835-01-158-6878
NSN 6220-01-169-6478