The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-231-2369, 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 Graham Corp. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-231-2369 |
| Primary Part Number | 15X4C26S |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Graham Corp |
| Status | ACTIVE |
| Heat Transfer Method | DIRECT |
| Tube Quantity | 16 |
| Tubing Outside Diameter | 0.500 INCHES NOMINAL BOTH INLET AND OUTLET TUBE ENDS IN |
| Material | IRON SHELL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 15X4C26S PRIMARY | Graham Corp (USA) |
| Reference | Meaning |
|---|---|
| 9496M41P01 | 5/9 Secondary reference General Electric Company |
| 15X4C26S | 5/9 Secondary reference Graham Mfg Co Inc for Procurement Use CAGE Code 1lcx3 |
NSN 4420-01-231-2369 is a Cooler,fluid,industrial, manufactured by Graham Corp, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-231-2369 has 1 manufacturer part number on file: 15X4C26S (Graham Corp).
Key specifications for 15X4C26S: Heat Transfer Method: DIRECT; Tube Quantity: 16; Tubing Outside Diameter: 0.500 INCHES NOMINAL BOTH INLET AND OUTLET TUBE ENDS IN; End Item Identification: F101 ENGINE;B-1B. 4 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.
NSN 4420-01-231-2369 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.