The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-354-6975, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-354-6975 |
| Primary Part Number | F-503-EY-4P-CNTB |
| 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 | 32.620 INCHES NOMINAL IN |
| Style Designator | STRAIGHT PLAIN TUBE CYLINDRICAL |
| Diameter | 6.500 INCHES NOMINAL IN |
| Tubing Outside Diameter | 0.250 INCHES NOMINAL BOTH INLET AND OUTLET TUBE ENDS IN |
| Capacity Rating | 4320.0 GALLONS PER HOUR |
| Material | BRASS SHELL |
| Material | COPPER ALLOY TUBES |
| Material | COPPER ALLOY TUBE SHEET |
| 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 |
|---|---|
| F-503-EY-4P-CNTB PRIMARY | Young Touchstone Company Div Young Touchstone (USA) |
| Reference | Meaning |
|---|---|
| F-503-EY-4P-CNT | C/1 Advisory reference — outside the item-of-supply concept Young Touchstone Company Div Young Touchstone |
NSN 4420-01-354-6975 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 4420-01-354-6975 has 1 manufacturer part number on file: F-503-EY-4P-CNTB (Young Touchstone Company Div Young Touchstone).
Key specifications for F-503-EY-4P-CNTB: Heat Transfer Method: INDIRECT; Length: 32.620 INCHES NOMINAL IN; Style Designator: STRAIGHT PLAIN TUBE CYLINDRICAL; Diameter: 6.500 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.