fittings › boss reducers
AN893-1D
Aeronautical Standard Boss Reducer
Description
Bushing, Reducer
Specifications
| Alternate Part Number | AS5172D0405L |
|---|---|
| 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 | 00-231-1324 |
| NSN | 4730-00-231-1324 |
| Nominallength | 1.109 |
| Overall Dimension G | 0.750 in |
| Overall Dimension M | 1 7/64 in |
| Specification Data | 96906-ms24397d1 government standard |
| Surface Treatment | Anodize |
| Thread Class | 3a 2nd end, 3b 1st end |
| 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 1st end, 0.500 inches 2nd end |
| Thread T (Reference) | 1/2-20 |
| Weight | 0.039 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 AN893-1D. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error