The Hose,air Duct, cataloged under National Stock Number 4720-01-305-3936, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-305-3936 |
| Primary Part Number | 324-5749000 PC28 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Measuring Method and Length | 64.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 2.000 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.065 INCHES NOMINAL IN |
| Operating Pressure | 4.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | OZONE RESISTANT |
| Specification/standard Data | 80205-NAS1370 THRU 1379 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Inside Diameter | 2.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 2.000 INCHES NOMINAL FIRST END IN |
| Material | STEEL AND COPPER ALLOY SECOND PLY |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR THIRD PLY |
| Material | FIBERGLASS AND RUBBER CHLOROPRENE CLASS CR FIRST PLY |
| Material | FIBERGLASS FOURTH 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 |
|---|---|
| 324-5749000 PC28 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| NAS1369 | 3/1 Design control — primary reference U.S. Government activity |
| 324-5749000 | D/9 Drawing number reference only Naval Sea Systems Command |
| NAS1376A08CA244 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-305-3936 is a Hose,air Duct, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-305-3936 has 1 manufacturer part number on file: 324-5749000 PC28 (Naval Sea Systems Command).
Key specifications for 324-5749000 PC28: Measuring Method and Length: 64.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 2.000 INCHES IN; Connection Style: ROUND FIRST END; Connection Type: SOFT FIRST END. 17 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.