The Hose,air Duct, cataloged under National Stock Number 4720-01-201-8499, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Royal Engineered Composites, Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-201-8499 |
| Primary Part Number | SF2-152-15 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Royal Engineered Composites, Inc. |
| Status | ACTIVE |
| Measuring Method and Length | 24.000 INCHES NOMINAL OVERALL IN |
| Style Designator | SLEEVE SECTION |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.060 INCHES NOMINAL IN |
| Inside Diameter | 0.250 INCHES NOMINAL FIRST END IN |
| 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 |
|---|---|
| 2201859-15 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| SF2-152-15 PRIMARY | Royal Engineered Composites, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5581-15 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-201-8499 is a Hose,air Duct, manufactured by Royal Engineered Composites, Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-201-8499 has 2 manufacturer part numbers on file: 2201859-15 (Honeywell International Inc. Div Aerospace - Torrance), SF2-152-15 (Royal Engineered Composites, Inc.).
Key specifications for SF2-152-15: Measuring Method and Length: 24.000 INCHES NOMINAL OVERALL IN; Style Designator: SLEEVE SECTION; Cross-Sectional Shape Style: ROUND; Wall Thickness: 0.060 INCHES NOMINAL IN. 5 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.