nuts › self-locking hexagon nuts
MS21083N6
Military Standard Locking Hexagon Nut Self
Description
Nut
Specifications
| Alternate Part Number | AN364-624 |
|---|---|
| Bearing Surface Finish | 125.0 microinches |
| Bearing Surface Type | Chamfered or washer faced |
| Countersink Angle | 88.0 degrees nut |
| Hardness Rating | 35.0 rockwell c |
| Locking Feature | Prevailing torque with nonmetallic insert |
| Lubrication | Soluble lubricant |
| Material | Plastic |
| Nut Height | 0.282 |
| Nut Style | Hexagon |
| Surface Treatment | Cadmium except insert and chromate except insert |
| Surface Treatment Specification | Cl 2 federal specification all treatment responses except insert type 2 qq-p-416 |
| Temperature Rating | 250.0 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 | 0.375 |
| Weight | 0.0091 lb |
| Width Across Flats | Between 0.553 inches and 0.564 inches |
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.
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error