The Tee,tube, cataloged under National Stock Number 4730-00-450-9146, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 27 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-450-9146 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 REDUCER NUT AND 2 TUBE COUPLING NUT AND 3 COUPLING SLEEVE |
| Connection Style | GASKET SEAL, COMPRESSION (TUBE) FIRST ENDGASKET SEAL, COMPRESSION (TUBE) FIRST END |
| Connection Style | GASKET SEAL, COMPRESSION (TUBE) SECOND ENDGASKET SEAL, COMPRESSION (TUBE) SECOND END |
| Connection Style | GASKET SEAL, COMPRESSION (TUBE) THIRD ENDGASKET SEAL, COMPRESSION (TUBE) THIRD END |
| Connection Type | THREADED EXTERNAL TUBE THIRD ENDTHREADED EXTERNAL TUBE THIRD END |
| Connection Type | THREADED EXTERNAL TUBE SECOND ENDTHREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST ENDTHREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES THIRD END IN |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES THIRD END1.000 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES SECOND END1.000 INCHES FIRST END IN |
| Operating Pressure | 2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 2.219 INCHES NOMINAL ALL ENDS2.219 INCHES NOMINAL ALL ENDS IN |
| Nominal Thread Size | 1.312 INCHES FIRST END1.312 INCHES FIRST END IN |
| Nominal Thread Size | 0.875 INCHES THIRD END0.875 INCHES THIRD END IN |
| Nominal Thread Size | 1.312 INCHES SECOND END1.312 INCHES SECOND END IN |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | CADMIUM OVERALL |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Thread Class | 2A THIRD END2A THIRD END A |
| Thread Class | 2A SECOND END2A SECOND END A |
| Thread Class | 2A FIRST END2A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END12 FIRST END |
| Thread Quantity Per Inch | 12 SECOND END12 SECOND END |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF THIRD END |
| Thread Series Designator | UN SECOND ENDUN FIRST END |
| Thread Series Designator | UNF THIRD ENDUN SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 16-10 | 5/1 Secondary reference U.S. Government activity |
| 140-16-10MF | 3/2 Design control — primary reference U.S. Government activity |
| 140-16-10 | 5/9 Secondary reference U.S. Government activity |
| 1655865-15 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4730-00-450-9146 is a Tee,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5998-01-141-6108. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-450-9146: Furnished Items and Quantity: 1 REDUCER NUT AND 2 TUBE COUPLING NUT AND 3 COUPLING SLEEVE; Connection Style: GASKET SEAL, COMPRESSION (TUBE) FIRST ENDGASKET SEAL, COMPRESSION (TUBE) FIRST END; Connection Style: GASKET SEAL, COMPRESSION (TUBE) SECOND ENDGASKET SEAL, COMPRESSION (TUBE) SECOND END; Connection Style: GASKET SEAL, COMPRESSION (TUBE) THIRD ENDGASKET SEAL, COMPRESSION (TUBE) THIRD END. 27 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.