The Coupling Assembly,tube, cataloged under National Stock Number 4730-01-524-7705, 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 Naval Sea Systems Command. Government technical data includes 24 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-524-7705 |
| Primary Part Number | 7082031 |
| Item Name | Coupling Assembly,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) FIRST ENDUNABLE TO DECODE |
| Connection Style | BEADED (HOSE) SECOND ENDUNABLE TO DECODE |
| Connection Style | FLARED (TUBE) THIRD ENDUNABLE TO DECODE |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED EXTERNAL TUBE FIRST ENDUNABLE TO DECODE |
| Connection Type | GROOVED COUPLING SECOND ENDUNABLE TO DECODE |
| Connection Type | THREADED EXTERNAL TUBE THIRD ENDUNABLE TO DECODE |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST ENDUNABLE TO DECODE IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES THIRD ENDUNABLE TO DECODE IN |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Nominal Thread Size | 0.438 INCHES THIRD ENDUNABLE TO DECODE IN |
| Seat Angle | 37.0 DEGREES FIRST ENDUNABLE TO DECODE |
| Seat Angle | 37.0 DEGREES THIRD ENDUNABLE TO DECODE |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSEUNABLE TO DECODE DEGF |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Class | 3A FIRST ENDUNABLE TO DECODE A |
| Thread Class | 3A THIRD ENDUNABLE TO DECODE A |
| Nominal Coupling Size Accommodated | 0.250 INCHES SECOND ENDUNABLE TO DECODE IN |
| Unable to Decode | UNABLE TO DECODEUNABLE TO DECODE |
| Material | STEEL CORROSION RESISTING OVERALLUNABLE TO DECODE |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Thread Series Designator | UNABLE TO DECODE |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) THIRD END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 7082031 PRIMARY | Naval Sea Systems Command (USA) |
NSN 4730-01-524-7705 is a Coupling Assembly,tube, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-524-7705 has 1 manufacturer part number on file: 7082031 (Naval Sea Systems Command).
Key specifications for 7082031: Connection Style: FLARED (TUBE) FIRST ENDUNABLE TO DECODE; Connection Style: BEADED (HOSE) SECOND ENDUNABLE TO DECODE; Connection Style: FLARED (TUBE) THIRD ENDUNABLE TO DECODE; Criticality Code Justification: FEAT. 24 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.