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 5950-01-510-9445
NSN 6685-01-647-5983
NSN 5930-01-609-0543
NSN 6135-00-010-5275
NSN 5925-01-557-7692
NSN 6320-01-433-3953
NSN 5999-00-189-0772
NSN 5925-01-481-3442
NSN 5835-01-484-4698
NSN 2925-01-433-8915
NSN 5990-00-378-1449
NSN 5910-01-604-9544