The Hose,air Duct, cataloged under National Stock Number 4720-01-424-9100, 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 1 manufacturer part number 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-424-9100 |
| Primary Part Number | 9168287-2 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Flexfab Llc |
| Status | ACTIVE |
| Measuring Method and Length | 8.750 INCHES NOMINAL OVERALL IN |
| Connection Type | PLAIN BOTH ENDS |
| Style Designator | SLEEVE SECTION |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 4.0 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS |
| Features Provided | FUNGUS RESISTANT TREATMENT AND OIL RESISTANT |
| Inside Diameter | 11.190 INCHES NOMINAL FIRST END IN |
| Material | RUBBER CHLOROPRENE CLASS CR AND FIBERGLASS SINGLE PLY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9168287-2 PRIMARY | Flexfab Llc (USA) |
| Reference | Meaning |
|---|---|
| X9168287 | D/9 Drawing number reference only U.S. Government activity |
| X9168287-2 | 5/9 Secondary reference U.S. Government activity |
| 9168287-2 | 5/9 Secondary reference U.S. Government activity |
| FLX2 | 5/9 Secondary reference Flexfab Llc |
| 9168287-2 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 9168287-2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4720-01-424-9100 is a Hose,air Duct, manufactured by Flexfab Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-424-9100 has 1 manufacturer part number on file: 9168287-2 (Flexfab Llc).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-424-9103. Verify interchangeability with system specifications before substitution.
Key specifications for 9168287-2: Measuring Method and Length: 8.750 INCHES NOMINAL OVERALL IN; Connection Type: PLAIN BOTH ENDS; Style Designator: SLEEVE SECTION; Cross-Sectional Shape Style: ROUND. 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.