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 5905-01-172-9801
NSN 6110-01-055-6442
NSN 6220-01-202-6689
NSN 5960-01-493-3948
NSN 5975-01-448-9738
NSN 6685-01-267-5726
NSN 6150-01-619-4041
NSN 5965-01-093-0642
NSN 6320-01-312-0036
NSN 6610-01-332-5126
NSN 5999-00-416-3387
NSN 6105-00-195-1273