Flight safety critical aircraft part
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: Washers other than lock washers, iron or steel
NSN 6610-01-580-0766
NSN 6150-00-777-5209
NSN 5950-00-584-4571
NSN 5985-00-235-0006
NSN 5855-01-314-8335
NSN 5835-01-163-4215
NSN 5930-01-274-2646
NSN 6240-00-832-6867
NSN 6110-01-614-8644
NSN 6130-00-232-7203
NSN 6320-00-270-8222
NSN 5996-00-821-8136