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 6610-01-342-8710
NSN 5920-01-445-6970
NSN 5855-01-387-5224
NSN 6220-01-136-2765
NSN 6145-00-738-5601
NSN 5855-01-656-6808
NSN 5960-00-172-7889
NSN 5985-01-199-6954
NSN 5915-00-177-7125
NSN 5835-01-250-2939
NSN 2925-01-440-9912
NSN 7035-00-922-5700