The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-327-8376, 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 Xchanger Manufacturing Corporation Dba Xchanger Manufacturing Corp. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-327-8376 |
| Primary Part Number | D2673 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Xchanger Manufacturing Corporation Dba Xchanger Manufacturing Corp |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Style Designator | PLAIN "U" TUBE |
| Material Document and Classification | ASTM B402-715 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Core Diameter | 16.000 INCHES NOMINAL IN |
| Tube Quantity | 55 |
| Core Length | 34.938 INCHES NOMINAL IN |
| Material | COPPER ALLOY 715 OVERALL |
| 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 |
|---|---|
| D2673 PRIMARY | Xchanger Manufacturing Corporation Dba Xchanger Manufacturing Corp (USA) |
| D2671 FIND 2 | Xchanger Manufacturing Corporation Dba Xchanger Manufacturing Corp (USA) |
NSN 4420-01-327-8376 is a Core Assembly,fluid Cooler, manufactured by Xchanger Manufacturing Corporation Dba Xchanger Manufacturing Corp, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-327-8376 has 2 manufacturer part numbers on file: D2673 (Xchanger Manufacturing Corporation Dba Xchanger Manufacturing Corp), D2671 FIND 2 (Xchanger Manufacturing Corporation Dba Xchanger Manufacturing Corp).
Key specifications for D2673: Heat Transfer Method: INDIRECT; Style Designator: PLAIN "U" TUBE; Material Document and Classification: ASTM B402-715 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Core Diameter: 16.000 INCHES NOMINAL IN. 7 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.