washers › recessed washers
MS21206C6
Military Standard Recessed Washer
Description
Washer
Specifications
| Hardness Rating | 38.0 rockwell c minimum and 45.0 rockwell c maximum |
|---|---|
| Hole Diameter | 0.376 inches minimum and 0.380 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 | 0.071 inches minimum and 0.085 inches maximum |
| NIIN | 01-057-3627 |
| NSN | 5310-01-057-3627 |
| Outside Diameter | 0.669 inches minimum and 0.679 inches maximum |
| Recess Angle | 90.0 degrees |
| Recess Diameter | 0.497 inches minimum and 0.507 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
No interchangeable or dimensionally similar parts are on record for MS21206C6. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error