fittings › tube fitting locknuts
AN6289J6
Aeronautical Standard Tube Fitting Locknut
Description
tube outer diameter: 3/8", thread: 9/16-18, corrosion resistant
Specifications
| Material | CRES |
|---|---|
| Nut Height | 0.813 |
| Nut Style | Tube fitting locknut |
| Specification Data | 88044-an818 government standard |
| Surface Treatment | Passivate |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series | Unjf (fine thread with external controlled root radius) |
| Thread Size | 0.562 |
| Width Across Flats | Between 0.809 inches and 0.816 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 AN6289J6. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error