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 5910-01-074-4496
NSN 6320-01-225-0178
NSN 6110-00-864-7507
NSN 5965-01-630-4390
NSN 5998-01-252-8803
NSN 2925-01-118-6125
NSN 6150-01-190-9528
NSN 6240-00-132-5375
NSN 5895-01-167-8905
NSN 5950-00-992-5328
NSN 6650-01-094-6876
NSN 5895-01-259-8359