nuts › self-locking extended washer nuts
NAS1291C3M
Locking Extended Washer Nut Self
Description
Self Locking Hex Nut
Specifications
| Criticality Code Justification | Feat |
|---|---|
| Locking Feature | Prevailing torque all metal design |
| Lubrication | Dry film lubricant |
| Material | Iron |
| Material Specification | Ams 5735 assn standard single material response |
| NIIN | 00-894-3638 |
| NSN | 5310-00-894-3638 |
| Nut Style | Hexagon |
| Overall Height | Between 0.154 inches and 0.188 inches |
| Special Features | Fluorescent penetrant inspect |
| Surface Treatment | Passivate |
| Temperature Rating | 450 degrees fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | Unf (fine thread) |
| Thread Size | 0.190 |
| Washer Outside Diameter | 0.330 |
| Washer Thickness | 0.015 |
| Weight | .0015 lb |
| Width Across Flats | Between 0.243 inches and 0.252 inches |
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 NAS1291C3M. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error