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MS21055L5
Military Standard Locking Nutplate Self
Description
Nutplate
Specifications
| Alternate Part Number | NAS684A5 |
|---|---|
| Distance From Aperture Center To Mounting Hole Center | Between 0.495 inches and 0.505 inches |
| Hardness Rating | 49.0 rockwell c |
| Locking Feature | Prevailing torque all metal design |
| Lubrication | Dry film lubricant |
| Material | Steel |
| Mounting Hole Arrangement Style | 2 holes |
| Mounting Hole Diameter | Between 0.130 inches and 0.135 inches |
| NIIN | 00-779-6620 |
| NSN | 5310-00-779-6620 |
| Nut Height | 0.328 |
| Nut Length | 0.914 |
| Nut Mounting Provision | Straight holes |
| Nut Style | Plate |
| Plate Thickness | 0.065 |
| Surface Treatment | Cadmium |
| Temperature Rating | 450 degrees fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | Unjf (fine thread with external controlled root radius) |
| Thread Size | 0.312 |
| Weight | .005 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21055L3
- MS21055L3K
- MS21055L4
- MS21055L5
- MS21055L06
- MS21055L08
- MS21055L08K
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.
- MS21047-5 MS 5/16-24 · Steel
- MS21047L5 MS 5/16-24 · Steel
- MS21047L5K MS 5/16-24 · Steel
- MS21048-5 MS 5/16-24 · Iron
- MS21048L5 MS 5/16-24 · CRES
- MS21051L5 MS 5/16-24 · Steel
- MS21069-5 MS 5/16-24 · Steel
- MS21069L5 MS 5/16-24 · Steel
- MS21070-5 MS 5/16-24 · Iron
- MS21071L5 MS 5/16-24 · Steel
- MS21072L5 MS 5/16-24 · Iron
- MS21073-5 MS 5/16-24 · Steel
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error