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AN818-3
Steel Nut
Description
Coupling Nut
Specifications
| Connection Type | Flared Tube |
|---|---|
| Diameter A | 0.242 in |
| Diameter C | 0.437 in |
| Dimension A Tolerance | +0.003 in |
| Dimension C Tolerance | +0.000 in |
| Dimension J | 0.375 in |
| Dimension M | 0.604 in |
| Dimension M Tolerance | +0.005 in |
| Dimension O | 0.438 in |
| Dimension O Tolerance | -0.004 in |
| End Application | Grumman a10 aircraft bell observation helicopter oh-5ba |
| Industry Standards/Certification | AN818 |
| Material | Steel |
| Material Specification | 66 federal standard all material responses |
| NIIN | 00-277-6451 |
| NSN | 4730-00-277-6451 |
| Nut Height | 0.594 |
| Nut Style | Tube coupling |
| Size No. Alum | 3D |
| Size No. SS | 3J |
| Size No. Steel | 3 |
| Surface Treatment | Cadmium |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | Unf (fine thread) |
| Thread Size | 0.375, 3/8-24 |
| Thread T (MIL-S-8879) | 0.3750-24 |
| Tube O.D. | 3/16 |
| Tube Outside Diameter | 0.188 in |
| Weight | 0.01 lb |
| Width Across Flats | 0.438 |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error