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 6320-01-462-2295
NSN 7035-00-055-9778
NSN 6130-01-292-9829
NSN 5920-01-320-0472
NSN 6240-00-398-0740
NSN 5990-00-185-5888
NSN 6645-01-534-5545
NSN 2925-01-106-8871
NSN 6645-00-462-7072
NSN 6150-01-449-7927
NSN 6105-01-577-1042
NSN 6240-00-319-0173