fittings › boss reducers
AN919-12J
Aeronautical Standard Boss Reducer
Description
Reducer
Specifications
| Alternate Item Number | AS5174J0806 |
|---|---|
| Connection Style | Flared w/ gasket seal (boss) all ends |
| Connection Type | Flare Type, Threaded external boss all ends |
| Dimension E | 1.000 in |
| Dimension S | 23/32 in |
| Dimension W | 1 17/32 in |
| End Application | viking s-3a grumman aerospace corporation a10 aircraft; 16n aircraft |
| Flare Angle | 37 º |
| Industry Standards/Certification | AN919 |
| Material | CRES |
| Material Specification | 66 federal standard single material response |
| Maximum Operating Pressure | 3000.0 pounds per square inch single response |
| Maximum Operating Temp | 275.0 degrees fahrenheit single response |
| NIIN | 00-462-0250 |
| NSN | 4730-00-462-0250 |
| Nominallength | 1.531 |
| Specification Data | 88044-an917 government standard |
| Surface Treatment | Passivate |
| Thread Class | 3a all ends |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) 2nd end, Unjf (fine thread with external controlled root radius) 1st end |
| Thread Size | 0.562 inches 2nd end, 0.750 inches 1st end |
| Thread T (Large End (Reference)) | 3/4-16 |
| Thread T (Small End (Reference)) | 9/16-18 |
| Tube Outside Diameter (Large End) | 0.500 in |
| Tube Outside Diameter (Small End) | 3/8 in |
| Weight | 0.145 lb |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN919-12J. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error