This 1/4"-1/8" 37° Flare Male to Male Union is used on aerospace hydraulic systems One end fits 1/4" in Tube OD with 7/16"-20 thread and the other end fits 1/8" in Tube OD with 5/16'-24 thread
| Type | Aerospace Aluminum Hydraulic Fittings |
| Style | 37 deg Flare Male to Male Union |
| Size | 1/4" x 1/8" |
| Material | Aluminum |
| Color | Blue |
| LargeTube Size | 1/4" |
| Small Tube Size | 1/8" |
| Large End Size | 7/16"-20 |
| Small End Size | 5/16'-24 |
| AN Specification | AN919-1D |