This 1/2 in 1/4 in 37° Flare Male to Male Union is used on aerospace hydraulic systems One end fits 1/2 in Tube OD with 3/4 in-16 thread and the other end fits 1/4 in Tube OD with 7/16 in-20 thread
| Type | Aerospace Aluminum Hydraulic Fittings |
| Style | 37° Flare Male to Male Union |
| Size | 1/2" x 1/4" |
| Material | Aluminum |
| Color | Blue |
| LargeTube Size | 1/2" |
| Small Tube Size | 1/4" |
| Large End Size | 3/4"-16 |
| Small End Size | 7/16"-20 |
| AN Specification | AN919-10D |
| SAE Specification | AS5174D0804 |
| MS Specification | MS24399D0804 |
| Hex Size | 1" |
