The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-026-6224, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Young Touchstone Company Div Young Touchstone. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-026-6224 |
| Primary Part Number | 178558-948 |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Young Touchstone Company Div Young Touchstone |
| Status | ACTIVE |
| Measuring Method and Length | 48.000 INCHES NOMINAL OVERALL IN |
| Flexibility | FLEXIBLE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.450 INCHES NOMINAL IN |
| Exterior Color | BLACK |
| Inside Diameter | 0.312 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Material | RUBBER SYNTHETIC TUBE |
| 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 |
|---|---|
| 178558-948 PRIMARY | Young Touchstone Company Div Young Touchstone (USA) |
| Reference | Meaning |
|---|---|
| A178558 | 5/9 Secondary reference Young Touchstone Company Div Young Touchstone |
| 113143 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-01-026-6224 is a Tubing,nonmetallic, manufactured by Young Touchstone Company Div Young Touchstone, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-026-6224 has 1 manufacturer part number on file: 178558-948 (Young Touchstone Company Div Young Touchstone).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-132-7451. Verify interchangeability with system specifications before substitution.
Key specifications for 178558-948: Measuring Method and Length: 48.000 INCHES NOMINAL OVERALL IN; Flexibility: FLEXIBLE; Cross-Sectional Shape Style: ROUND; Outside Diameter: 0.450 INCHES NOMINAL IN. 9 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.