fittings › tube reducers
AN919-18
Aeronautical Standard Tube Reducer
Description
Reducer
Specifications
| Alternate Item Number | AS5174-1206 |
|---|---|
| Connection Style | Flared (tube) all ends |
| Connection Type | Flare Type, Threaded external tube all ends |
| Dimension E | 1.375 in |
| Dimension S | 57/64 in |
| Dimension W | 1 51/64 in |
| Flare Angle | 37 º |
| Industry Standards/Certification | AN919 |
| Material | Steel |
| Material Specification | 66 fed std single material response |
| Media For Which Designed | Hydraulic fluid single response |
| NIIN | 00-805-5094 |
| NSN | 4730-00-805-5094 |
| Nominallength | 1.796 |
| Outside Diameter Tube Accommodated | 0.375 inches 2nd end, 0.750 inches 1st end |
| Seat Angle | 37.0 degrees all ends |
| Surface Treatment | Cadmium |
| Thread Class | 3a all ends |
| Thread Qty Per Inch (tpi) | 12 1st end |
| Thread Series Designator | Un 1st end, Unf 2nd end |
| Thread Size | 0.562 inches 2nd end, 1.062 inches 1st end |
| Thread T (Large End (Reference)) | 1 1/16-12 |
| Thread T (Small End (Reference)) | 9/16-18 |
| Tube Outside Diameter (Large End) | 0.750 in |
| Tube Outside Diameter (Small End) | 3/8 in |
| Weight | .005 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN919-18. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error