The Hose Assembly,metallic, cataloged under National Stock Number 4720-01-425-2918, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-425-2918 |
| Item Name | Hose Assembly,metallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 9.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -320.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Style | PLAIN FIRST END |
| Connection Style | STRAIGHT BEVELED SECOND END |
| Nominal Inside Diameter Hose Accommodated | 0.500 INCHES SECOND END IN |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.840 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Hydrostatic Test Pressure | 1350.0 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 3600.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPT FIRST END |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SPECIAL FEATURES |
| Inner Conveying Tube Style | ANNULAR OPEN-PITCH CORRUGATED |
| 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 |
|---|---|
| 1602AS249-1 | 3/1 Design control — primary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 1602AS249 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4720-01-425-2918 is a Hose Assembly,metallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-425-2919, 4720-01-432-5979. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-01-425-2918: Measuring Method and Length: 9.000 INCHES NOMINAL OVERALL IN; Temp Rating: -320.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Style: PLAIN FIRST END; Connection Style: STRAIGHT BEVELED SECOND END. 19 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.