The Hose Assembly,metallic, cataloged under National Stock Number 4720-01-597-3308, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4720-01-597-3308 |
| Item Name | Hose Assembly,metallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES FIRST END |
| Measuring Method and Length | 224.0 INCHES NOMINAL OVERALL IN |
| Temp Rating | -40.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 2.5 INCHES IN |
| Connection Style | PLAIN OPTIONAL END ALL ENDS |
| End Connection Design | ELBOW FIRST END |
| Vacuum in Torr | 28.0 |
| Layer Composition and Location | 1ST LAYER MOLDED RUBBER, SYNTHETIC |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.680 INCHES NOMINAL IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Outer Covering Environmental Protection | ABRASION RESISTANT |
| Thread Series Designator | NPTF ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| F451TC3968040404YE-224 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-597-3308 is a Hose Assembly,metallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-597-3308: Flow Angle: 90.0 DEGREES FIRST END; Measuring Method and Length: 224.0 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 2.5 INCHES IN. 18 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.