The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-184-4629, 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 6 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-184-4629 |
| Primary Part Number | F-502-ER-2P-CNT-B |
| 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 | 21.620 INCHES NOMINAL IN |
| Style Designator | COILED PLAIN TYPE |
| Diameter | 6.250 INCHES NOMINAL IN |
| Height | 6.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 260527 | Young Touchstone Company Div Young Touchstone (USA) |
| F-502-ER-2P-CNT-B PRIMARY | Young Touchstone Company Div Young Touchstone (USA) |
NSN 4420-01-184-4629 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 4420-01-184-4629 has 2 manufacturer part numbers on file: 260527 (Young Touchstone Company Div Young Touchstone), F-502-ER-2P-CNT-B (Young Touchstone Company Div Young Touchstone).
2 possible matches (shared part number, not a government interchangeability claim): 4420-01-249-1820, 5315-01-347-1421. Verify interchangeability with system specifications before substitution.
Key specifications for F-502-ER-2P-CNT-B: Heat Transfer Method: INDIRECT; Length: 21.620 INCHES NOMINAL IN; Style Designator: COILED PLAIN TYPE; Diameter: 6.250 INCHES NOMINAL IN. 6 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.