The Hose,air Duct, cataloged under National Stock Number 4720-01-228-1073, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Textron Systems Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-228-1073 |
| Primary Part Number | 5750013-003 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Textron Systems Corp |
| Status | ACTIVE |
| Measuring Method and Length | 4.000 INCHES NOMINAL OVERALL IN |
| Connection Type | PLAIN FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 16.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inside Diameter | 6.000 INCHES NOMINAL FIRST END IN |
| Material | STEEL REINFORCING WIRE |
| Material | COTTON AND RUBBER BUTYL SINGLE PLY |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 5750013-3 | Naval Sea Systems Command (USA) |
| 5750013-003 | Naval Sea Systems Command (USA) |
| 5750013-003 PRIMARY | Textron Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 5750013C-3 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 513-5750013 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4720-01-228-1073 is a Hose,air Duct, manufactured by Textron Systems Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-228-1073 has 3 manufacturer part numbers on file: 5750013-3 (Naval Sea Systems Command), 5750013-003 (Naval Sea Systems Command), 5750013-003 (Textron Systems Corp).
3 possible matches (shared part number, not a government interchangeability claim): 4720-01-228-1074, 4720-01-228-1075, 4720-01-228-1076. Verify interchangeability with system specifications before substitution.
Key specifications for 5750013-003: Measuring Method and Length: 4.000 INCHES NOMINAL OVERALL IN; Connection Type: PLAIN FIRST END; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED; 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.
NSN 4720-01-228-1073 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.