The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-440-4983, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4420-01-440-4983 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Tube Quantity | 1 |
| Tubing Outside Diameter | 1.050 INCHES NOMINAL BOTH INLET AND OUTLET TUBE ENDS IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| COIL-1 | 3/9 Design control — primary reference Blume Worldwide Services |
| COIL-1 | 5/9 Secondary reference Mohawk Mfg Corp |
NSN 4420-01-440-4983 is a Core Assembly,fluid Cooler, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
Key specifications for 4420-01-440-4983: Heat Transfer Method: INDIRECT; Tube Quantity: 1; Tubing Outside Diameter: 1.050 INCHES NOMINAL BOTH INLET AND OUTLET TUBE ENDS IN; Special Features: 3/4 IN. SCH 40 PIPE; REDUCER COUPLING ON ONE END 3/4 IN. SW X 1/2 IN. NPT; COILED IN. 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.
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.