nuts › self-locking extended washer nuts
MS21043-08
Military Standard Locking Extended Washer Nut Self
Description
Nut
Specifications
| Features | Heat Resistant |
|---|---|
| Finish | Silver Plate |
| Industry Standards/Certification | MS21043 |
| Locking Feature | Prevailing torque all metal design |
| Lubrication | Soluble lubricant |
| Material | CRES |
| Material Specification | Ams 5525 assn standard single material response or ams 5735 assn standard single material response |
| Maximum Diameter A | 0.290 in |
| Maximum Dimension H | 0.188 in |
| Maximum Dimension W | 0.221 in |
| Minimum Dimension C | 0.244 in |
| Minimum Dimension H | 0.125 in |
| Minimum Dimension W | 0.213 in |
| NIIN | 00-878-7196 |
| NSN | 5310-00-878-7196 |
| Nut Style | Hexagon |
| Overall Height | Between 0.125 inches and 0.188 inches |
| Precious Material And Location | External surface silver |
| Service Temperature | 800 ºF |
| Shape | Reduced Hexagon |
| Surface Treatment | Silver |
| Surface Treatment Specification | Qq-s-365 federal specification single treatment response or 2410 assn standard single treatment response |
| Temperature Rating | 800.0 degrees fahrenheit |
| Thread | 8-32 |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNJC |
| Thread Size | 0.164, 8-32 |
| Type | Self-Locking Nut |
| Washer Outside Diameter | 0.290 |
| Washer Thickness | 0.015 |
| Weight | 0.0013 lb |
| Width Across Flats | Between 0.213 inches and 0.221 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21043-3
- MS21043-04
- MS21043-5
- MS21043-06
- MS21043-6
- MS21043-08
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21043-08. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error