The Hose,air Duct, cataloged under National Stock Number 4720-00-981-0337, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is The Boeing Company. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-981-0337 |
| Primary Part Number | 4818609-3 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Measuring Method and Length | 10.500 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | PREFORMED BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.250 INCHES NOMINAL IN |
| Operating Pressure | 40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inside Diameter | 0.875 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.062 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 0.875 INCHES NOMINAL BOTH ENDS IN |
| Material | RUBBER SILICONE CLASS Q FIRST PLY |
| Material | STEEL CORROSION RESISTING REINFORCING WIRE |
| Material | COTTON AND RUBBER COVER |
| 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 |
|---|---|
| REDAR-A10960-07 | R.e. Darling Co., Inc. (USA) |
| 4818609-3 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 4818609 | D/9 Drawing number reference only U.S. Government activity |
| REDAR-A10960-7 | 5/9 Secondary reference R.e. Darling Co., Inc. |
| 4818609-3 | 5/2 Secondary reference U.S. Government activity |
NSN 4720-00-981-0337 is a Hose,air Duct, manufactured by The Boeing Company, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-981-0337 has 2 manufacturer part numbers on file: REDAR-A10960-07 (R.e. Darling Co., Inc.), 4818609-3 (The Boeing Company).
Key specifications for 4818609-3: Measuring Method and Length: 10.500 INCHES NOMINAL OVERALL IN; Connection Style: ROUND BOTH ENDS; Connection Type: PREFORMED 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.