The Hose Assembly,air Duct,air Breat, cataloged under National Stock Number 4720-01-051-9754, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-051-9754 |
| Item Name | Hose Assembly,air Duct,air Breat |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 18.500 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND FIRST END |
| Connection Type | COUPLING SECOND END |
| Connection Type | PREFORMED FIRST END |
| Coupling Style | THREADED INTERNAL SECOND END |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.117 INCHES NOMINAL IN |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Inside Diameter | 0.250 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 0.250 INCHES NOMINAL FIRST END IN |
| Thread Quantity Per Inch | 20 SECOND END |
| Material | ALUMINUM ALLOY SECOND END COUPLING |
| Thread Series Designator | UNF SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 8148650 | A/1 Packaging identification reference U.S. Government activity |
| 16300101B2-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-051-9754 is a Hose Assembly,air Duct,air Breat, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-051-9754: Measuring Method and Length: 18.500 INCHES NOMINAL OVERALL IN; Connection Style: ROUND FIRST END; Connection Type: COUPLING SECOND END; Connection Type: PREFORMED FIRST END. 13 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.
NSN 4720-01-051-9754 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.