fittings › boss reducers
AN919-13J
Aeronautical Standard Boss Reducer
Description
Reducer
Specifications
| Alternate Item Number | AS5174J1004 |
|---|---|
| Connection Style | Flared w/ gasket seal (boss) all ends |
| Connection Type | Flare Type, Threaded external boss all ends |
| Dimension E | 1.125 in |
| Dimension S | 51/64 in |
| Dimension W | 1 21/32 in |
| End Application | Jwn newport class lst |
| 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 | 00-541-2742 |
| NSN | 4730-00-541-2742 |
| Nominallength | 1.656 |
| Specification Data | 88044-an919 government standard and 96906-ms24399 government standard |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Mil-s-5002 military specification single treatment response inside, Type 2 military specification single treatment response outside e300 mil-f-14072 |
| Thread Class | 3a all ends |
| Thread Series | UNJF |
| Thread Series Designator | Unf (fine thread) 2nd end, Unjf (fine thread with external controlled root radius) 1st end |
| Thread Size | 0.438 inches 2nd end, 0.875 inches 1st end |
| Thread T (Large End (Reference)) | 7/8-14 |
| Thread T (Small End (Reference)) | 7/16-20 |
| Tube Outside Diameter (Large End) | 0.625 in |
| Tube Outside Diameter (Small End) | 1/4 in |
| Weight | .005 lb |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN919-13J. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error