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 5905-01-196-0829
NSN 7035-01-633-9537
NSN 5910-01-041-7519
NSN 5965-00-246-5612
NSN 5930-01-077-3954
NSN 5915-00-528-7992
NSN 7035-00-153-3826
NSN 5990-01-298-6616
NSN 5835-00-523-0736
NSN 5925-01-015-5746
NSN 6610-00-181-7544
NSN 6150-01-077-0835