The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-558-4773, 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 Oshkosh Defense Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 — Heat Exchangers and Steam Condensers (FSG 44) |
| Manufacturers | Oshkosh Defense Llc (CAGE 75Q65); Modine Manufacturing Co (CAGE 3FQN6) |
| Parameter | Value |
|---|---|
| NSN | 4420-01-558-4773 |
| Primary Part Number | 3762847 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 3762847 PRIMARY | Oshkosh Defense Llc (USA) |
| IA020231 PRIMARY | Modine Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| PR3533001 | 5/9 Secondary reference Modine Manufacturing Co |
| 3627797 | 5/9 Secondary reference Oshkosh Corp |
| 3762847 | 5/9 Secondary reference Oshkosh Corp |
| 3762847 75Q65 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 4420-01-558-4773 is a Core Assembly,fluid Cooler, manufactured by Oshkosh Defense Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-558-4773 has 2 manufacturer part numbers on file: 3762847 (Oshkosh Defense Llc), IA020231 (Modine Manufacturing Co).
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.