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AN818-12J
Aeronautical Standard Tube Coupling Nut
Description
Coupling Nut
Specifications
| Connection Type | Flared Tube |
|---|---|
| Diameter A | 0.834 in |
| Diameter C | 1.250 in |
| Dimension A Tolerance | +0.003 in |
| Dimension C Tolerance | +0.000 in |
| Dimension J | 0.750 in |
| Dimension M | 1.021 in |
| Dimension M Tolerance | +0.010 in |
| Dimension O | 1.250 in |
| Dimension O Tolerance | -0.004 in |
| Industry Standards/Certification | AN818 |
| Material | CRES |
| Material Specification | 66 federal standard single material response |
| NIIN | 00-196-2378 |
| NSN | 4730-00-196-2378 |
| Nut Height | 1.021 |
| Nut Style | Tube coupling |
| Size No. Alum | 12D |
| Size No. SS | 12J |
| Size No. Steel | 12 |
| Specification Data | 88044-an818 government standard |
| Surface Treatment | Passivate |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 12 |
| Thread Qty Per Inch (tpi) | 12 |
| Thread Series | UNJ |
| Thread Size | 1 1/16-12, 1.062 |
| Thread T (MIL-S-8879) | 1.0625-12 |
| Tube O.D. | 3/4 |
| Tube Outside Diameter | 0.750 in |
| Weight | 0.165 lb |
| Width Across Flats | 1.25 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN818-12J. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error