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 5945-01-386-3135
NSN 5895-01-193-7474
NSN 5965-01-068-6696
NSN 5965-01-186-2051
NSN 6110-00-373-2818
NSN 2925-01-033-0141
NSN 5925-00-855-7587
NSN 7035-01-029-7221
NSN 5855-01-441-3189
NSN 5965-00-871-8987
NSN 5998-00-244-8629
NSN 6145-00-431-8376