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NAS1726-3D
Locking Assembled Washer Nut Self
Description
Thread Size: 1/4", Head Width: 1/4", 12 point, locknut
Specifications
| Bearing Surface Finish | 125.0 microinches |
|---|---|
| Counterbore Diameter | 0.211 inches minimum nut and 0.221 inches maximum nut |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Locking Feature | Prevailing torque all metal design |
| Lubrication | Dry film lubricant |
| Material | Steel |
| Nut Style | Flat with turned up edge |
| Overall Height | 0.223 inches minimum and 0.243 inches maximum |
| Special Features | Washer rockwell c scale 40 min and rockwell c scale 45 max |
| Specification Data | 80205-nas1726 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 class 2 fed spec single treatment response nut, Qq-p-416 type 2 class 2 fed spec single treatment response washer |
| Temperature Rating | 450.0 deg fahrenheit maximum |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNJF |
| Thread Size | 0.190 |
| Washer Outside Diameter | 0.380 inches maximum |
| Width Across Flats | 0.213 inches minimum and 0.221 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
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Catalog data updated 2026-07-05. Report a data error