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 2925-01-623-9285
NSN 5965-00-784-9409
NSN 5950-01-196-0894
NSN 5835-01-268-1924
NSN 6110-00-505-1671
NSN 6150-01-068-6235
NSN 7035-00-803-3056
NSN 2925-00-620-7757
NSN 4140-00-839-4911
NSN 6320-01-497-3116
NSN 5835-01-439-0180
NSN 5945-00-376-4930