The Coupling Assembly,hose, cataloged under National Stock Number 4730-01-471-3580, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-471-3580 |
| Item Name | Coupling Assembly,hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | PLAIN (HOSE) THIRD END |
| Connection Style | PLAIN (HOSE) SECOND END |
| Connection Style | PLAIN (TUBE) FIRST END |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL HOSE SECOND END |
| Connection Type | THREADED EXTERNAL HOSE THIRD END |
| Nominal Thread Size | 0.563 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES THIRD END IN |
| Thread Quantity Per Inch | 24 FIRST END |
| Thread Series Designator | UNEF FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 5-45-3352 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-471-3580 is a Coupling Assembly,hose, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-471-3580: Connection Style: PLAIN (HOSE) THIRD END; Connection Style: PLAIN (HOSE) SECOND END; Connection Style: PLAIN (TUBE) FIRST END; Criticality Code Justification: FEAT. 12 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.