fittings › boss reducers
AS5174-0604
Boss Reducer
Description
steel, male to male external thread, flared tube, large end, tube outer dia: 3/8", thread: 9/16-18
Specifications
| Connection Style | Flared w/ gasket seal (boss) all ends |
|---|---|
| Connection Type | Threaded external boss all ends |
| Material | Steel |
| Material Specification | 66 federal standard single material response |
| Nominallength | 1.406 |
| Specification Data | 88044-an919 government standard |
| Surface Treatment | Cadmium |
| Thread Class | 3a all ends |
| Thread Series | UNF |
| 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, 0.562 inches 1st end |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- AS5174-0604
- AS5174-1208
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for AS5174-0604 — functionally equivalent.
- AN919-6 Listed alternate 7/16 in · Steel
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Catalog data updated 2026-07-05. Report a data error