The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-338-9730, 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 Fluid Handling Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4420-01-338-9730 |
| Primary Part Number | 512612090001 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Fluid Handling Llc |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Length | 108.750 INCHES NOMINAL IN |
| Style Designator | FLANGED INLET AND OUTLET |
| Material Document and Classification | MIL-T-15005 MIL SPEC SINGLE MATERIAL RESPONSE TUBES |
| Height | 19.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY 715 TUBES |
| 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 |
|---|---|
| 512612090001 PRIMARY | Fluid Handling Llc (USA) |
| 5R8249 | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 512612090001 | 5/9 Secondary reference Itt Corporation Dba Itt Standard |
NSN 4420-01-338-9730 is a Cooler,fluid,industrial, manufactured by Fluid Handling Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-338-9730 has 2 manufacturer part numbers on file: 512612090001 (Fluid Handling Llc), 5R8249 (Caterpillar Inc Div Caterpillar Defense).
3 possible matches (shared part number, not a government interchangeability claim): 4420-01-342-3456, 4420-01-342-3457, 4320-01-343-0354. Verify interchangeability with system specifications before substitution.
Key specifications for 512612090001: Heat Transfer Method: INDIRECT; Length: 108.750 INCHES NOMINAL IN; Style Designator: FLANGED INLET AND OUTLET; Material Document and Classification: MIL-T-15005 MIL SPEC SINGLE MATERIAL RESPONSE TUBES. 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.