fittings › tube tees
AN804D4
Aeronautical Standard Tube Tee
Description
Tee
Specifications
| Connection Style | Flared (tube) all ends |
|---|---|
| Connection Type | Threaded external tube all ends |
| Leg Length | 0.891 inches nominal 2nd end, 0.953 inches nominal 3rd end, 1.578 inches nominal 1st end |
| Material | Aluminum |
| NIIN | 00-278-0557 |
| NSN | 4730-00-278-0557 |
| Outside Diameter Tube Accommodated | 0.250 inches all ends |
| Seat Angle | 37.0 degrees all ends |
| Surface Treatment | Anodize |
| Thread Class | 3a 1st end bulkhead, 3a all ends |
| Thread Series Designator | Unjf 1st end bulkhead, Unjf all ends |
| Thread Size | 0.438 inches 1st end bulkhead, 0.438 inches all ends |
| Weight | 0.04 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 AN804D4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error