fittings › tube reducers
AN919-20D
Aeronautical Standard Tube Reducer
Description
Reducer
Specifications
| Alternate Item Number | AS5174D1210 1/ |
|---|---|
| Alternate Part Number | AS5174D1210 |
| Connection Style | Flared (tube) all ends |
| Connection Type | Flare Type, Threaded external tube all ends |
| Criticality Code Justification | Feat |
| Dimension E | 1.375 in |
| Dimension S | 57/64 in |
| Dimension W | 2 in |
| Flare Angle | 37 º |
| Industry Standards/Certification | AN919 |
| Material | Aluminum |
| Material Specification | Qq-a-225/4,t6 fed spec 1st material response or qq-a-225/6,t6 fed spec 2nd material response |
| Maximum Operating Temp | 225.0 deg fahrenheit single response |
| Media For Which Designed | Hydraulic fluid single response |
| NIIN | 00-805-5100 |
| NSN | 4730-00-805-5100 |
| Nominallength | 2.000 |
| Outside Diameter Tube Accommodated | 0.625 inches 2nd end, 0.750 inches 1st end |
| Seat Angle | 37.0 degrees all ends |
| Special Features | Supports grumman a10a aircraft;weapon system essential |
| Specification Data | 96906-ms24399 government standard and 81349-mil-f-5509 government specification |
| Surface Treatment | Anodize |
| Surface Treatment Specification | Mil-a-8625,ty 2,cl 2 mil spec single treatment response |
| Thread Class | 3a all ends |
| Thread Qty Per Inch (tpi) | 12 1st end |
| Thread Series Designator | Unj 1st end, Unjf 2nd end |
| Thread Size | 0.875 inches 2nd end, 1.062 inches 1st end |
| Thread T (Large End (Reference)) | 1 1/16-12 |
| Thread T (Small End (Reference)) | 7/8-14 |
| Tube Outside Diameter (Large End) | 0.750 in |
| Tube Outside Diameter (Small End) | 5/8 in |
| Weight | 0.125 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for AN919-20D — functionally equivalent.
- AS5174D1210 Listed alternate 7/8-12 · Aluminum
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Catalog data updated 2026-07-05. Report a data error