The Hose Assembly,air Duct, cataloged under National Stock Number 4720-01-312-9011, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Flexfab Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-312-9011 |
| Primary Part Number | RAY1003-0001 |
| Item Name | Hose Assembly,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Flexfab Llc |
| Status | ACTIVE |
| Measuring Method and Length | 180.000 INCHES NOMINAL OVERALL IN |
| Criticality Code Justification | FEAT |
| Connection Type | COUPLING BOTH ENDS |
| Style Designator | SLEEVE SECTION |
| Coupling Style | PLAIN FLANGE SECOND END |
| Coupling Style | RAISED FACE FLANGE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Inside Diameter | 8.000 INCHES NOMINAL FIRST END IN |
| 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 |
|---|---|
| G109549-1 | Raytheon Company (USA) |
| RAY1003-0001 PRIMARY | Flexfab Llc (USA) |
| G109549-1 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| G109549-1 | 5/9 Secondary reference Raytheon Company Div Corp |
| RAY1003-001 | 5/9 Secondary reference Raytheon Company Div Corp |
| C1308791 | 5/9 Secondary reference Unifab Industries Inc |
| FLX1501-0005 | 5/9 Secondary reference Flexfab Llc |
| G109549 | D/9 Drawing number reference only Raytheon Company Dba Raytheon Co |
| G109549 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 4720-01-312-9011 is a Hose Assembly,air Duct, manufactured by Flexfab Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-312-9011 has 3 manufacturer part numbers on file: G109549-1 (Raytheon Company), RAY1003-0001 (Flexfab Llc), G109549-1 (Raytheon Company Dba Raytheon Co).
Key specifications for RAY1003-0001: Measuring Method and Length: 180.000 INCHES NOMINAL OVERALL IN; Criticality Code Justification: FEAT; Connection Type: COUPLING BOTH ENDS; Style Designator: SLEEVE SECTION. 8 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.