nuts › locknuts
NAS1031A8
Two Lug Locknut Plate
Description
Thread Size: 1/2", Nut Height: 5/8", Nut Length: 1-19/32"
Specifications
| Center To Center Distance Between Mounting Holes Along Length | 1.248 inches minimum and 1.252 inches maximum |
|---|---|
| Countersink Angle | 120.0 degrees nominal nut |
| Distance From Aperture Center To Mounting Hole Center | 0.625 |
| Features Provided | Floating nut |
| Locking Feature | Prevailing torque all metal design |
| Lubrication | Dry film lubricant |
| Material | Steel |
| Mounting Hole Arrangement Style | 2 holes |
| Mounting Hole Diameter | 0.161 inches minimum and 0.166 inches maximum |
| Nut Height | 0.630 inches maximum |
| Nut Length | 1.602 inches maximum |
| Nut Mounting Provision | Straight holes |
| Nut Style | Plate |
| Plate Thickness | 0.115 inches maximum |
| Plate Width | 0.859 inches maximum |
| Specification Data | 80205-nas1031 professional/industrial association standard |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416 fed spec single treatment response |
| Temperature Rating | 450.0 deg fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNJF |
| Thread Size | 0.500 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1031A3K
- NAS1031A8
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1031A8. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error