Washer-plain and countersunk, 17-4ph cres, 1200 degree f
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 5990-01-193-0487
NSN 5905-00-399-1394
NSN 6105-01-059-6108
NSN 5998-01-037-0405
NSN 6105-01-419-6082
NSN 4140-00-247-4773
NSN 6145-01-387-0935
NSN 5930-01-506-5314
NSN 6110-01-485-5097
NSN 6320-00-937-5625
NSN 5990-01-206-3606
NSN 5950-01-115-0252