M4
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.
NSN 5855-01-170-8957
NSN 6150-01-218-6286
NSN 5996-00-706-9390
NSN 5960-01-142-1995
NSN 5915-01-141-6726
NSN 5935-01-098-6435
NSN 6110-01-198-8880
NSN 5905-00-333-8115
NSN 6110-00-788-1521
NSN 6650-01-543-3349
NSN 5895-01-380-7603
NSN 6320-01-046-5228