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 5910-01-545-5765
NSN 6150-00-420-8613
NSN 6645-01-347-0450
NSN 6320-01-088-1109
NSN 5985-00-456-0240
NSN 5945-01-487-2900
NSN 5996-01-432-0117
NSN 6110-01-269-0261
NSN 5915-00-153-0002
NSN 5945-01-188-1437
NSN 5975-01-250-1220
NSN 6685-01-422-1571