washers › recessed washers
MS21206-C4
Military Standard Recessed Washer
Description
Recessed Washer part number MS21206-C4
Specifications
| Hardness Rating | 38.0 rockwell c minimum and 45.0 rockwell c maximum |
|---|---|
| Hole Diameter | 0.251 inches minimum and 0.255 inches maximum |
| Material | Steel |
| Material Specification | Mil-s-658 mil spec 1st material response or mil-s-18729 mil spec 2nd material response |
| Material Thickness | 0.057 inches minimum and 0.069 inches maximum |
| Outside Diameter | 0.460 inches minimum and 0.470 inches maximum |
| Recess Angle | 90.0 degrees |
| Recess Diameter | 0.340 inches minimum and 0.350 inches maximum |
| Style Designator | 15 recessed |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 2 fed spec single treatment response |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS14183C4 MS 1/4 · 15/32 in · Nickel
- MS14183L-C4 MS 1/4 · 15/32 in · Nickel
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Catalog data updated 2026-07-05. Report a data error