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NAS1726-5D
Locking Assembled Washer Nut Self
Description
Thread Size: 1/4", Head Width: 3/8"
Specifications
| Counterbore Diameter | 0.342 inches minimum nut and 0.352 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 Counterbore Depth | 0.072 inches minimum nut and 0.087 inches maximum nut |
| Nut Style | Flat with turned up edge |
| Overall Height | 0.316 inches minimum and 0.336 inches maximum |
| Special Features | Washer rockwell c scale 40 min 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 |
| Temperature Rating | 450.0 deg fahrenheit maximum |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNJF |
| Thread Size | 0.312 |
| Washer Outside Diameter | 0.560 inches maximum |
| Width Across Flats | 0.367 inches minimum and 0.376 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1726-5D. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error