The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-247-0209, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Flight Source Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-247-0209 |
| Primary Part Number | STM-B722-1/4-2 |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Flight Source Inc |
| Status | ACTIVE |
| Flexibility | FLEXIBLE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.250 INCHES NOMINAL IN |
| Exterior Color | BLUE |
| Specification/standard Data | 04236-STM-B722 MANUFACTURERS STANDARD |
| Inside Diameter | 0.125 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Minimum Tensile Strength | 1800 POUNDS PER SQUARE INCH LBS |
| Outer Covering Environmental Protection | OIL RESISTANT |
| Material | PLASTIC POLYURETHANE TUBE |
| Nonmetallic Hardness Rating | 80.0 NOMINAL SHORE DUROMETER A |
| 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 |
|---|---|
| STM-B722-1/4-2 | Flight Source Inc (USA) |
| Reference | Meaning |
|---|---|
| 1/4 INCH 3814-6BL (BLUE) | 5/9 Secondary reference U.S. Government activity |
| STM-B722-1/4-2 | 3/9 Design control — primary reference Lockheed Martin Corp |
NSN 4720-01-247-0209 is a Tubing,nonmetallic, manufactured by Flight Source Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-247-0209 has 1 manufacturer part number on file: STM-B722-1/4-2 (Flight Source Inc).
Key specifications for STM-B722-1/4-2: Flexibility: FLEXIBLE; Cross-Sectional Shape Style: ROUND; Outside Diameter: 0.250 INCHES NOMINAL IN; Exterior Color: BLUE. 11 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.