The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-178-8515, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-178-8515 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Status | ACTIVE |
| Heat Transfer Method | DIRECT |
| Length | 59.250 INCHES NOMINAL IN |
| Effective Heat Transfer Surface Area | 48.2 SQUARE FEET |
| Style Designator | COILED PLAIN TYPE |
| Diameter | 6.500 INCHES NOMINAL IN |
| Tube Quantity | 184 |
| Tube Attachment Method | BRAZED BOTH ENDS |
| Material Thickness | 5.000 INCHES NOMINAL IN |
| Tubing Outside Diameter | 0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Height | 9.750 INCHES NOMINAL IN |
| Material | BRASS HOUSING |
| 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 |
|---|---|
| D18649 | 5/9 Secondary reference U.S. Government activity |
| 18649 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4420-01-178-8515 is a Cooler,fluid,industrial, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
Key specifications for 4420-01-178-8515: Heat Transfer Method: DIRECT; Length: 59.250 INCHES NOMINAL IN; Effective Heat Transfer Surface Area: 48.2 SQUARE FEET; Style Designator: COILED PLAIN TYPE. 11 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.