The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-421-9728, 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 Ketema Inc Heat Transfer Div. Government technical data includes 6 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 | 4420-01-421-9728 |
| Primary Part Number | DXT-1810-RS-2P-4C |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Ketema Inc Heat Transfer Div |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Length | 138.125 INCHES NOMINAL IN |
| Style Designator | FINNED U-TUBE |
| Height | 22.750 INCHES NOMINAL IN |
| Width | 26.625 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING HOUSING |
| 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 |
|---|---|
| 330-J57-701 CHILL | Carrier Corp (USA) |
| 07E940778A REV 2 | Ketema Inc Heat Transfer Div (USA) |
| DXT-1810-RS-2P-4C PRIMARY | Ketema Inc Heat Transfer Div (USA) |
NSN 4420-01-421-9728 is a Cooler,fluid,industrial, manufactured by Ketema Inc Heat Transfer Div, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-421-9728 has 3 manufacturer part numbers on file: 330-J57-701 CHILL (Carrier Corp), 07E940778A REV 2 (Ketema Inc Heat Transfer Div), DXT-1810-RS-2P-4C (Ketema Inc Heat Transfer Div).
Key specifications for DXT-1810-RS-2P-4C: Heat Transfer Method: INDIRECT; Length: 138.125 INCHES NOMINAL IN; Style Designator: FINNED U-TUBE; Height: 22.750 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.