The Ferrule,swage,tube Coupling, cataloged under National Stock Number 4730-01-141-3256, 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 The Boeing Company Div Defense. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-141-3256 |
| Primary Part Number | ST7M405-28V |
| Item Name | Ferrule,swage,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Distance From Flanged End to Tubing Clearance Hole | 0.255 INCHES NOMINAL IN |
| Slot Quantity | 5 |
| Style Designator | DOUBLE FLANGE (SEAL GROOVE) |
| Flange Inside Diameter | 1.735 INCHES NOMINAL IN |
| Sleeve Outside Diameter | 1.892 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Slot Depth | 0.032 INCHES MINIMUM IN |
| Material | ALUMINUM ALLOY 2024 |
| Flange Outside Diameter | 2.034 INCHES NOMINAL IN |
| Slot Width | 0.040 INCHES MINIMUM IN |
| Hose/tube Outside Diameter for Which Designed | 1.750 INCHES NOMINAL IN |
| 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 |
|---|---|
| 14F12-28AA | Hydraflow (USA) |
| ST7M405-28V PRIMARY | The Boeing Company Div Defense (USA) |
| W902C28D PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
| ST7M405 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 10108745 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4730-01-141-3256 is a Ferrule,swage,tube Coupling, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-141-3256 has 4 manufacturer part numbers on file: 14F12-28AA (Hydraflow), ST7M405-28V (The Boeing Company Div Defense), W902C28D (Transdigm Inc Div Adelwiggins Group), ST7M405 (The Boeing Company Div Defense).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-185-8336, 4730-01-185-8337. Verify interchangeability with system specifications before substitution.
Key specifications for ST7M405-28V: Distance From Flanged End to Tubing Clearance Hole: 0.255 INCHES NOMINAL IN; Slot Quantity: 5; Style Designator: DOUBLE FLANGE (SEAL GROOVE); Flange Inside Diameter: 1.735 INCHES NOMINAL IN. 11 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.