The Tee,tube, cataloged under National Stock Number 4730-01-139-1645, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Smiths Tubular Systems-Laconia, Inc.. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-139-1645 |
| Primary Part Number | TF379T060804 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Smiths Tubular Systems-Laconia, Inc. |
| Status | ACTIVE |
| Connection Style | INVERTED FLARE (TUBE) THIRD END |
| Connection Style | SWIVEL NUT INVERTED FLARE (TUBE) FIRST END |
| Connection Style | INVERTED FLARE (TUBE) SECOND END |
| Connection Type | THREADED EXTERNAL TUBE THIRD END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES THIRD END IN |
| Leg Length | 0.950 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.795 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.830 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.438 INCHES THIRD END IN |
| Nominal Thread Size | 0.719 INCHES SECOND END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 8.5 DEGREES ALL ENDS |
| Thread Class | 3A SECOND END A |
| Thread Class | 3A THIRD END A |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 24 FIRST END |
| Thread Quantity Per Inch | 20 SECOND END |
| Thread Quantity Per Inch | 24 THIRD END |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNJS ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ST7M231T060804 | The Boeing Company Div Defense (USA) |
| TF379T060804 PRIMARY | Smiths Tubular Systems-Laconia, Inc. (USA) |
| AE16401-06-08-04 PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| R45133T-060804 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| AP379T060804 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| Reference | Meaning |
|---|---|
| 10108725 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| ST7M231 | D/9 Drawing number reference only The Boeing Company Div Defense |
| TF378T060804 | 5/9 Secondary reference Smiths Tubular Systems-Laconia, Inc. |
| AP378T060804 | 5/9 Secondary reference Sps Technologies, Llc Dba Airdrome Precision Components |
NSN 4730-01-139-1645 is a Tee,tube, manufactured by Smiths Tubular Systems-Laconia, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-139-1645 has 5 manufacturer part numbers on file: ST7M231T060804 (The Boeing Company Div Defense), TF379T060804 (Smiths Tubular Systems-Laconia, Inc.), AE16401-06-08-04 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), R45133T-060804 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), AP379T060804 (Sps Technologies, Llc Dba Airdrome Precision Components).
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-154-6331, 4730-01-169-7300, 4730-01-173-4129. Verify interchangeability with system specifications before substitution.
Key specifications for TF379T060804: Connection Style: INVERTED FLARE (TUBE) THIRD END; Connection Style: SWIVEL NUT INVERTED FLARE (TUBE) FIRST END; Connection Style: INVERTED FLARE (TUBE) SECOND END; Connection Type: THREADED EXTERNAL TUBE THIRD END. 24 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.