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 2925-00-635-9731
NSN 6220-01-545-1397
NSN 6320-01-353-9753
NSN 6130-01-559-4938
NSN 5960-01-544-1273
NSN 5999-01-144-5560
NSN 6130-00-816-7981
NSN 6105-00-474-5177
NSN 7035-00-517-8232
NSN 5990-01-127-9294
NSN 6145-01-197-1175
NSN 6240-00-144-4693