fittings › boss reducers
AN919-23D
Aeronautical Standard Boss Reducer
Description
Reducer
Specifications
| Alternate Item Number | AS5174D1612 1/ |
|---|---|
| Connection Style | Flared w/ gasket seal (boss) all ends |
| Connection Type | Flare Type, Threaded external boss all ends |
| Dimension E | 1.625 in |
| Dimension S | 57/64 in |
| Dimension W | 2 5/32 in |
| End Application | Aircraft aplication |
| Flare Angle | 37 º |
| Industry Standards/Certification | AN919 |
| Material | Aluminum |
| Material Specification | T6 federal specification single material response qq-a-225/4 |
| Maximum Operating Pressure | 1500.0 pounds per square inch single response |
| Maximum Operating Temp | 160.0 degrees fahrenheit single response |
| NIIN | 00-187-3596 |
| NSN | 4730-00-187-3596 |
| Nominallength | 2.156 |
| Specification Data | 81343-as5174 professional/industrial association specification |
| Surface Treatment | Anodize |
| Thread Class | 3a all ends |
| Thread Qty | 12 |
| Thread Qty Per Inch (tpi) | 12 all ends |
| Thread Series | UN |
| Thread Series Designator | Un all ends |
| Thread Size | 1.062 inches 2nd end, 1.312 inches 1st end |
| Thread T (Large End (Reference)) | 1 5/16-12 |
| Thread T (Small End (Reference)) | 1 1/16-12 |
| Tube Outside Diameter (Large End) | 1 in |
| Tube Outside Diameter (Small End) | 3/4 in |
| Weight | 0.165 lb |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN919-23D. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error