The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-320-8355, 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 Champ Products Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4420-01-320-8355 |
| Primary Part Number | RAC3145CN |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Champ Products Inc |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Length | 31.000 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Height | 5.062 INCHES NOMINAL IN |
| Material | COPPER AND NICKEL 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 |
|---|---|
| RAC3145CN PRIMARY | Champ Products Inc (USA) |
| 7734 | Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA) |
| Reference | Meaning |
|---|---|
| 7734CN | C/1 Advisory reference — outside the item-of-supply concept Champ Products Inc |
| 3145 | C/1 Advisory reference — outside the item-of-supply concept Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor |
| RAC3145CN | C/1 Advisory reference — outside the item-of-supply concept Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor |
NSN 4420-01-320-8355 is a Cooler,fluid,industrial, manufactured by Champ Products Inc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-320-8355 has 2 manufacturer part numbers on file: RAC3145CN (Champ Products Inc), 7734 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).
2 possible matches (shared part number, not a government interchangeability claim): 5110-01-383-4623, 7530-01-610-6858. Verify interchangeability with system specifications before substitution.
Key specifications for RAC3145CN: Heat Transfer Method: INDIRECT; Length: 31.000 INCHES NOMINAL IN; Style Designator: CYLINDRICAL; Height: 5.062 INCHES NOMINAL IN. 5 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.