fittings › boss reducers
AN919-22D
Aeronautical Standard Boss Reducer
Description
Reducer
Specifications
| Alternate Item Number | AS5174D1610 |
|---|---|
| Connection Style | Flared w/ gasket seal (boss) all ends |
| Connection Type | Flare Type, Threaded external boss all ends |
| Criticality Code Justification | Feat |
| Dimension E | 1.625 in |
| Dimension S | 57/64 in |
| Dimension W | 2 3/64 in |
| End Application | Hercules c-130 aircraft application;aircraft |
| Flare Angle | 37 º |
| Industry Standards/Certification | AN919 |
| Material | Aluminum |
| Material Specification | T6 federal specification single material response t6 federal specification single material response or qq-a-225/6 qq-a-225/4 |
| Media For Which Designed | Fluid single response |
| NIIN | 00-187-3595 |
| NSN | 4730-00-187-3595 |
| Nominallength | 2.047 |
| Special Features | Weapon system essential |
| Surface Treatment | Anodize |
| Surface Treatment Specification | Class 2 military specification single treatment response type 2 mil-a-8625 |
| Thread Class | 3a all ends |
| Thread Qty | 12 |
| Thread Qty Per Inch (tpi) | 12 1st end |
| Thread Series | UN |
| Thread Series Designator | Un 1st end, Unf (fine thread) 2nd end |
| Thread Size | 0.875 inches 2nd end, 1.312 inches 1st end |
| Thread T (Large End (Reference)) | 1 5/16-12 |
| Thread T (Small End (Reference)) | 7/8-14 |
| Tube Outside Diameter (Large End) | 1 in |
| Tube Outside Diameter (Small End) | 5/8 in |
| Weight | 0.155 lb |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN919-22D. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error