The Coupling Assembly,self-Sealing, cataloged under National Stock Number 4730-00-433-2580, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-433-2580 |
| Primary Part Number | 140-12D |
| Item Name | Coupling Assembly,self-Sealing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| Status | ACTIVE |
| Connection Style | FLARED FIRST QUICK DISCONNECT ENDFLARED FIRST QUICK DISCONNECT END |
| Connection Style | FLARED SECOND QUICK DISCONNECT ENDFLARED SECOND QUICK DISCONNECT END |
| Bolt Circle Nominal Diameter | 2.125 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST QUICK DISCONNECT ENDTHREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END |
| Connection Type | THREADED EXTERNAL TUBE SECOND QUICK DISCONNECT ENDTHREADED EXTERNAL TUBE SECOND QUICK DISCONNECT END |
| Style Designator | COUPLING ASSEMBLY |
| Bolt Hole Nominal Diameter | 0.190 INCHES IN |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES SECOND QUICK DISCONNECT END IN |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES SECOND QUICK DISCONNECT END0.750 INCHES FIRST QUICK DISCONNECT END IN |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Second End Relationship with First End | NOT IDENTICALNOT IDENTICAL |
| Mounting Flange Location | FIRST LEGFIRST LEG |
| Features Provided | SELF-SEALINGSELF-SEALING |
| Basic Shape Style | ROUND MOUNTING FLANGEROUND MOUNTING FLANGE |
| Nominal Thread Size | 1.062 INCHES FIRST QUICK DISCONNECT END1.062 INCHES FIRST QUICK DISCONNECT END IN |
| Nominal Thread Size | 1.062 INCHES SECOND QUICK DISCONNECT END1.062 INCHES SECOND QUICK DISCONNECT END IN |
| Seat Angle | 37.0 DEGREES |
| Nominal Outside Diameter | 2.510 INCHES IN |
| Bolt Hole Quantity | 66 |
| Surface Treatment | ANODIZE BODY |
| Thread Class | 3A FIRST QUICK DISCONNECT END3A FIRST QUICK DISCONNECT END A |
| Thread Class | 3A SECOND QUICK DISCONNECT END3A SECOND QUICK DISCONNECT END A |
| Thread Quantity Per Inch | 12 FIRST QUICK DISCONNECT END12 FIRST QUICK DISCONNECT END |
| Thread Quantity Per Inch | 12 SECOND QUICK DISCONNECT END12 SECOND QUICK DISCONNECT END |
| Material | ALUMINUM ALLOY BODY |
| Thread Series Designator | UN SECOND QUICK DISCONNECT END |
| Thread Series Designator | UN SECOND QUICK DISCONNECT ENDUN FIRST QUICK DISCONNECT END |
| 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 |
|---|---|
| 140-12D PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| AN6242-12 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-433-2580 is a Coupling Assembly,self-Sealing, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-433-2580 has 1 manufacturer part number on file: 140-12D (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).
Key specifications for 140-12D: Connection Style: FLARED FIRST QUICK DISCONNECT ENDFLARED FIRST QUICK DISCONNECT END; Connection Style: FLARED SECOND QUICK DISCONNECT ENDFLARED SECOND QUICK DISCONNECT END; Bolt Circle Nominal Diameter: 2.125 INCHES IN; Connection Type: THREADED EXTERNAL TUBE FIRST QUICK DISCONNECT ENDTHREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END. 27 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.