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AN806-4
Aeronautical Standard Threaded Tube Fitting Plug
Description
Pressure Plug
Specifications
| Connection Style | Flared |
|---|---|
| Connection Type | Flared |
| Dash No. Alum | 4D |
| Dash No. Steel | 4 |
| Dimension A | 17/32 in |
| Dimension B | 47/64 in |
| Dimension C | 0.438 in |
| End Application | Hornet f/a-18 43n aircraft |
| Head Angle | 37 º |
| Head Height | 0.184 |
| Industry Standards/Certification | AN806 |
| Material | Steel |
| NIIN | 00-542-4994 |
| NSN | 4730-00-542-4994 |
| Overall Length | 0.734 |
| Plug Type | Pressure |
| Style Designator | Should not be considered as a separating characteristic) tube fitting flared (note: drilled hole is optional plug |
| Surface Treatment | Zinc |
| Thread Class | 3a external |
| Thread Direction | Right-hand external |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) external |
| Thread Size | 0.438 inches external, 7/16-20 |
| Thread Size (Reference) | 7/16-20 |
| Tube O.D. | 1/4 |
| Tube Outside Diameter | 1/4 in |
| Weight | 0.025 lb |
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Catalog data updated 2026-07-05. Report a data error