nuts › self-locking nutplates
NAS686C4M
Locking Nutplate Self
Description
Thread Size: 1/4", Nut Length: 1-1/4", Nut Height: 1/4", NAS686 series nut
Specifications
| Center To Center Distance Between Mounting Holes Along Length | 0.998 inches minimum and 1.002 inches maximum |
|---|---|
| Distance From Aperture Center To Mounting Hole Center | 0.500 |
| Features Provided | Floating nut |
| Hardness Rating | 49.0 rockwell c maximum |
| Locking Feature | Prevailing torque all metal design |
| Lubrication | Dry film lubricant |
| Material | Iron |
| Material Specification | Ams 5525 assn std single material response or ams 5735 assn std single material response or ams 5737 assn std single material response |
| Mounting Hole Arrangement Style | 2 holes |
| Mounting Hole Diameter | 0.098 inches minimum and 0.103 inches maximum |
| Nut Height | 0.281 inches maximum |
| Nut Length | 1.292 inches maximum |
| Nut Mounting Provision | Straight holes |
| Nut Style | Plate |
| Plate Thickness | 0.032 inches maximum |
| Plate Width | 0.350 inches minimum and 0.516 inches maximum |
| Surface Treatment | Passivate |
| 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 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS686C4M — functionally equivalent.
- MS21060L4 Listed alternate 1/4-28 · Iron
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- BACN10JN04 BAC 1/4-28 · Steel
- BACN10JR4CF BAC 1/4-28 · Iron
- BACN10JR4CFM BAC 1/4-28 · Iron
- MS21059L4 MS 1/4-28 · Steel
- MS21059L4K MS 1/4-28 · Steel
- MS21060-4 MS 1/4-28 · Iron
- MS21060-4K MS 1/4-28 · Iron
- MS21060L4K MS 1/4-28 · CRES
- MS21061-4 MS 1/4-28 · Steel
- MS21061L4 MS 1/4-28 · Steel
- MS21061L4K MS 1/4-28 · Steel
- MS21062L4 MS 1/4-28 · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error