fittings › boss reducers
AN893-3D
Aeronautical Standard Boss Reducer
Description
Bushing, Reducer
Specifications
| Connection Style | External seat for gasket seal (boss) 2nd end, Gasket seal (boss) 1st end |
|---|---|
| Connection Type | Threaded external boss 2nd end, Threaded internal boss 1st end |
| Industry Standards/Certification | AN893 |
| Material | Aluminum |
| NIIN | 00-231-1326 |
| NSN | 4730-00-231-1326 |
| Nominallength | 0.781 |
| Overall Dimension G | 1.000 in |
| Overall Dimension M | 25/32 in |
| Surface Treatment | Anodize |
| Thread Class | 3a 2nd end, 3b 1st end |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) 1st end, Unf (fine thread) 2nd end |
| Thread Size | 0.438 inches 1st end, 0.750 inches 2nd end |
| Thread T (Reference) | 3/4-16 |
| Weight | .005 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN893-3D. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error