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 5950-01-420-3919
NSN 5950-01-021-6989
NSN 5960-01-598-6003
NSN 6240-01-218-5187
NSN 6320-00-681-1324
NSN 5855-01-290-3248
NSN 5895-01-322-5563
NSN 5895-01-269-9148
NSN 6685-01-468-7660
NSN 5996-01-230-4157
NSN 4140-01-095-7860
NSN 6220-01-195-4832