The Hose,air Duct, cataloged under National Stock Number 4720-00-021-8371, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Air Cruisers Company, Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-021-8371 |
| Primary Part Number | 712276 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Air Cruisers Company, Llc |
| Status | ACTIVE |
| Measuring Method and Length | 4.000 INCHES NOMINAL OVERALL IN |
| Connection Type | PLAIN BOTH ENDS |
| Style Designator | BOX SECTION |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 10.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inside Diameter | 7.000 INCHES NOMINAL FIRST END IN |
| Material | PLASTIC POLYAMIDE NYLON AND RUBBER SILICONE CLASS Q FIRST PLY |
| Material | PLASTIC POLYAMIDE NYLON AND RUBBER SILICONE CLASS Q SECOND 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 |
|---|---|
| 712276 PRIMARY | Air Cruisers Company, Llc (USA) |
| 712276 PRIMARY | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 86D24594 | 5/9 Secondary reference Tex-Tech Engineered Composites, Llc |
| 3A94105-101 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4720-00-021-8371 is a Hose,air Duct, manufactured by Air Cruisers Company, Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-021-8371 has 2 manufacturer part numbers on file: 712276 (Air Cruisers Company, Llc), 712276 (Arrowhead Products Corp).
Key specifications for 712276: Measuring Method and Length: 4.000 INCHES NOMINAL OVERALL IN; Connection Type: PLAIN BOTH ENDS; Style Designator: BOX 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.