The Hose,air Duct, cataloged under National Stock Number 4720-01-482-3637, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-482-3637 |
| Primary Part Number | 8724783-1 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Minimum Inside Bending Radius | 1.125 INCHES IN |
| Vacuum Rating | 10.0 INCHES OF MERCURY IN |
| Connection Type | PLAIN BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Material Document and Classification | MIL-PRF-62028C,TYPE II,CLASS3 MIL SPEC ALL MATERIAL RESPONSES ALL PLIES |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.220 INCHES NOMINAL IN |
| Operating Pressure | 5.0 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS |
| Features Provided | FUNGUS RESISTANT TREATMENT AND OZONE RESISTANT |
| Inside Diameter | 2.250 INCHES NOMINAL FIRST END IN |
| Material | STEEL REINFORCING WIRE |
| Material | RUBBER SYNTHETIC COVER |
| Material | RUBBER LINER |
| 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 |
|---|---|
| 8724783-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 4720-01-482-3637 is a Hose,air Duct, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-482-3637 has 1 manufacturer part number on file: 8724783-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8724783-1: Minimum Inside Bending Radius: 1.125 INCHES IN; Vacuum Rating: 10.0 INCHES OF MERCURY IN; Connection Type: PLAIN BOTH ENDS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 13 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.