The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-538-4622, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Young Touchstone Company Div Young Touchstone. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-538-4622 |
| Primary Part Number | 307766 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Young Touchstone Company Div Young Touchstone |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Length | 12.250 INCHES NOMINAL IN |
| Style Designator | COILED PLAIN TYPE |
| Diameter | 5.000 INCHES NOMINAL IN |
| Tubing Outside Diameter | 0.250 INCHES NOMINAL BOTH INLET AND OUTLET TUBE ENDS IN |
| Height | 5.000 INCHES NOMINAL IN |
| Material | COPPER TUBES |
| 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 |
|---|---|
| 307766 PRIMARY | Young Touchstone Company Div Young Touchstone (USA) |
| 307766 | Douglas Thermal Products Ltd (CAN) |
| F-301-HY-4P-B | Douglas Thermal Products Ltd (CAN) |
NSN 4420-01-538-4622 is a Cooler,fluid,industrial, manufactured by Young Touchstone Company Div Young Touchstone, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-538-4622 has 3 manufacturer part numbers on file: 307766 (Young Touchstone Company Div Young Touchstone), 307766 (Douglas Thermal Products Ltd), F-301-HY-4P-B (Douglas Thermal Products Ltd).
Key specifications for 307766: Heat Transfer Method: INDIRECT; Length: 12.250 INCHES NOMINAL IN; Style Designator: COILED PLAIN TYPE; Diameter: 5.000 INCHES NOMINAL IN. 7 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.