nuts › self-locking nutplates
MS21073-4
Military Standard Locking Plate Nut Self
Description
1/4-28 thread - self-locking corner nutplate - reduced rivet spacing low height - cadmium plated carbon steel - 450°,, without dry film lube - plain rivet holes
Specifications
| Distance From Aperture Center To Mounting Hole Center | 0.276 inches minimum and 0.286 inches maximum |
|---|---|
| Hardness Rating | 49.0 rockwell c maximum |
| Locking Feature | Prevailing torque all metal design |
| Lubrication | Soluble lubricant |
| Material | Steel |
| Mounting Hole Arrangement Style | 2 holes |
| Mounting Hole Diameter | 0.098 inches minimum and 0.103 inches maximum |
| NIIN | 00-761-3711 |
| NSN | 5310-00-761-3711 |
| Nut Height | 0.281 inches maximum |
| Nut Length | 0.603 inches maximum |
| Nut Mounting Provision | Straight holes |
| Nut Style | Plate |
| Plate Thickness | 0.055 inches maximum |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 fed spec single treatment response |
| Temperature Rating | 450.0 deg fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Size | 0.250 |
| Weight | 0.003 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21073-3
- MS21073-3K
- MS21073-4
- MS21073-5
- MS21073-06
- MS21073-6
- MS21073-08
Cross-reference
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- MS21051-4 MS 1/4-28 · Steel
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- MS21052-4 MS 1/4-28 · Iron
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error