The Coupling Assembly,self-Sealing, cataloged under National Stock Number 4730-01-540-2413, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-540-2413 |
| Primary Part Number | 70307-03001-105 |
| Item Name | Coupling Assembly,self-Sealing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 GASKET AND 1 SPRING |
| Flow Angle | 90.0 DEGREES |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL ALL ENDS |
| Connection Style | SWIVEL FLANGE, RAISED MOUNTING FLANGE |
| Bolt Circle Nominal Diameter | 1.750 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Connection Type | FLANGE MOUNTING FLANGE |
| Style Designator | COUPLING ASSEMBLY |
| Bolt Hole Nominal Diameter | 0.205 INCHES IN |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES ALL ENDS IN |
| Operating Pressure | 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Mounting Flange Location | FIRST END |
| Leg Length | 2.650 INCHES NOMINAL IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 1.313 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 4 |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 16 ALL ENDS |
| Material | ALUMINUM ALLOY 2024 BODY |
| Thread Series Designator | UN ALL ENDS |
| Nominal Thickness | 0.297 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 70307-03001-105 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| AE75446M | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
NSN 4730-01-540-2413 is a Coupling Assembly,self-Sealing, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-540-2413 has 2 manufacturer part numbers on file: 70307-03001-105 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), AE75446M (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
Key specifications for 70307-03001-105: Furnished Items and Quantity: 1 GASKET AND 1 SPRING; Flow Angle: 90.0 DEGREES; Connection Style: EXTERNAL SEAT FOR GASKET SEAL ALL ENDS; Connection Style: SWIVEL FLANGE, RAISED MOUNTING FLANGE. 22 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.