The Cross,pipe to Tube, cataloged under National Stock Number 4730-00-411-5585, 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 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-411-5585 |
| Primary Part Number | 1656439-3 |
| Item Name | Cross,pipe to 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 SPLIT COLLET SLEEVE |
| Connection Style | GASKET SEAL, COMPRESSION (TUBE) SECOND END |
| Connection Style | PLAIN (PIPE) FOURTH END |
| Connection Style | GASKET SEAL, COMPRESSION (TUBE) FIRST END |
| Connection Style | GASKET SEAL, COMPRESSION (TUBE) THIRD END |
| Connection Type | THREADED EXTERNAL TUBE THIRD END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL PIPE FOURTH END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES THIRD END IN |
| Nominal Outside Diameter Tube Accommodated | UNABLE TO DECODE |
| Operating Pressure | 2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.250 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.250 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.250 INCHES NOMINAL THIRD END IN |
| Leg Length | 0.906 INCHES NOMINAL FOURTH END IN |
| Nominal Thread Size | 0.562 INCHES THIRD END IN |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES FOURTH END IN |
| Nominal Thread Size | UNABLE TO DECODE |
| Maximum Operating Temp | 135.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | CADMIUM OVERALL |
| Surface Treatment | UNABLE TO DECODE |
| Thread Class | 2A SECOND END A |
| Thread Class | 2A FIRST END A |
| Thread Class | 2A THIRD END A |
| 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 |
|---|---|
| 1656439-3 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 820-6MF | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-411-5585 is a Cross,pipe to 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 4730-00-411-5585 has 1 manufacturer part number on file: 1656439-3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1656439-3: Furnished Items and Quantity: 3 SHORT COUPLING NUT AND 3 SPLIT COLLET SLEEVE; Connection Style: GASKET SEAL, COMPRESSION (TUBE) SECOND END; Connection Style: PLAIN (PIPE) FOURTH END; Connection Style: GASKET SEAL, COMPRESSION (TUBE) FIRST END. 29 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.