The Shell,fluid Cooler,industrial, cataloged under National Stock Number 4420-01-375-1526, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4420-01-375-1526 |
| Item Name | Shell,fluid Cooler,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| 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 |
| Reference | Meaning |
|---|---|
| 250418K1 | 5/9 Secondary reference U.S. Government activity |
| 250418K1 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 8214B | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 250418K1 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 8214B | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 8214B | 3/9 Design control — primary reference U.S. Government activity |
| 12416418 | D/9 Drawing number reference only U.S. Government activity |
NSN 4420-01-375-1526 is a Shell,fluid Cooler,industrial, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5925-01-540-7580, 5925-01-642-8350. Verify interchangeability with system specifications before substitution.
Key specifications for 4420-01-375-1526: Special Features: 2ND STAGE COOLER COMPRESSSOR. 0 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.