The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-149-7944, 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 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division. Government technical data includes 2 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-149-7944 |
| Primary Part Number | 037-71681 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Material | STEEL SHELL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4420-01-149-7944 is a Cooler,fluid,industrial, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-149-7944 has 2 manufacturer part numbers on file: 037-71681 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division), 150407 (Fluid Power Solution Llc).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-261-1672. Verify interchangeability with system specifications before substitution.
Key specifications for 037-71681: Heat Transfer Method: INDIRECT; Material: STEEL SHELL. 2 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.