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 2925-01-307-2637
NSN 5915-00-141-0410
NSN 2925-01-448-2880
NSN 5925-00-244-7418
NSN 5985-01-271-1757
NSN 6240-00-803-2777
NSN 5990-01-555-6616
NSN 5985-01-410-7659
NSN 5999-01-014-4972
NSN 6685-01-212-3972
NSN 6145-01-259-0308
NSN 5895-00-376-5074