fittings › tube reducers
AS5174-0504
Tube Reducer
Description
steel - male to male external thread - 37°, flared tube - large end - tube outer dia: 5/16", thread: 1/2-20
Specifications
| Connection Style | Flared (tube) all ends |
|---|---|
| Connection Type | Threaded external tube all ends |
| Material | Steel |
| Material Specification | 66 fed std single material response |
| Nominallength | 1.359 |
| Outside Diameter Tube Accommodated | 0.250 inches 2nd end, 0.313 inches 1st end |
| Seat Angle | 37.0 degrees all ends |
| Specification Data | 81349-mil-f-5509 government specification |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty 1,cl 2 fed spec single treatment response |
| Thread Class | 3a all ends |
| Thread Series Designator | Unf all ends |
| Thread Size | 0.438 inches 2nd end, 0.500 inches 1st end |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for AS5174-0504 — functionally equivalent.
- AN919-3 Listed alternate Steel
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Catalog data updated 2026-07-05. Report a data error