The Coupling Assembly,tube,flexible, cataloged under National Stock Number 4730-01-328-0664, 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 Hydraflow. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-328-0664 |
| Primary Part Number | 14J32-56A |
| Item Name | Coupling Assembly,tube,flexible |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hydraflow |
| Status | ACTIVE |
| Tube Outside Diameter for Which Designed | 3.500 INCHES NOMINAL IN |
| Style Designator | FLEXIBLE COUPLING ASSEMBLY |
| Outside Diameter | 4.190 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 14J32-56A PRIMARY | Hydraflow (USA) |
| 07A060-56A | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| 07A060-56A | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 07A060 | D/9 Drawing number reference only Hydraflow |
NSN 4730-01-328-0664 is a Coupling Assembly,tube,flexible, manufactured by Hydraflow, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-328-0664 has 3 manufacturer part numbers on file: 14J32-56A (Hydraflow), 07A060-56A (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), 07A060-56A (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-339-8111. Verify interchangeability with system specifications before substitution.
Key specifications for 14J32-56A: Tube Outside Diameter for Which Designed: 3.500 INCHES NOMINAL IN; Style Designator: FLEXIBLE COUPLING ASSEMBLY; Outside Diameter: 4.190 INCHES NOMINAL IN; Special Features: INTEGRAL ELECTRICAL BOND. 4 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.