The Tee,tube, cataloged under National Stock Number 4730-00-489-8211, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-489-8211 |
| Primary Part Number | 1655865-26 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Furnished Items and Quantity | 3 SHORT COUPLING NUT AND 3 BULKHEAD NUT AND 3 COUPLING SLEEVE |
| Connection Style | GASKET SEAL, COMPRESSION (TUBE) ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES THIRD END IN |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES FIRST END IN |
| Operating Pressure | 2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.750 INCHES NOMINAL ALL ENDS IN |
| Nominal Thread Size | 0.438 INCHES THIRD END IN |
| Nominal Thread Size | 1.125 INCHES SECOND END IN |
| Nominal Thread Size | 1.125 INCHES FIRST END IN |
| Maximum Operating Temp | 135.0 CELSIUS SINGLE RESPONSE DEGC |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A ALL ENDS A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| 1655865-26 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 12-4 | 5/9 Secondary reference U.S. Government activity |
| 140-12-4MF | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-489-8211 is a Tee,tube, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-489-8211 has 1 manufacturer part number on file: 1655865-26 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1655865-26: Furnished Items and Quantity: 3 SHORT COUPLING NUT AND 3 BULKHEAD NUT AND 3 COUPLING SLEEVE; Connection Style: GASKET SEAL, COMPRESSION (TUBE) ALL ENDS; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Nominal Outside Diameter Tube Accommodated: 0.750 INCHES SECOND END IN. 16 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.