The Cooler,oil, cataloged under National Stock Number 4420-00-602-6904, 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 Triumph Thermal Systems, Llc. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Cooler,oil |
| FSC / FSG | 4420 — Heat Exchangers and Steam Condensers (FSG 44) |
| Manufacturers | Mtu Maintenance Berlin-Brandenburg Gmbh (CAGE C7262); Triumph Thermal Systems, Llc (CAGE 78943); General Electric Company (CAGE 07482) |
| Parameter | Value |
|---|---|
| NSN | 4420-00-602-6904 |
| Primary Part Number | UA535667-4 |
| Item Name | Cooler,oil |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| L22173P04 | Mtu Maintenance Berlin-Brandenburg Gmbh (DEU) |
| UA535667-4 PRIMARY | Triumph Thermal Systems, Llc (USA) |
| L22173P04 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| UA535667-2 | 5/9 Secondary reference Triumph Thermal Systems, Llc |
| L22173P03 | 5/9 Secondary reference General Electric Company |
| 2930PL0633021 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4420-00-602-6904 is a Cooler,oil, manufactured by Triumph Thermal Systems, Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-00-602-6904 has 3 manufacturer part numbers on file: L22173P04 (Mtu Maintenance Berlin-Brandenburg Gmbh), UA535667-4 (Triumph Thermal Systems, Llc), L22173P04 (General Electric Company).
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.