The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-00-360-2453, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-00-360-2453 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Status | ACTIVE |
| Effective Heat Transfer Surface Area | 116.0 SQUARE FEET |
| Material Document and Classification | MIL-C-15726,COMP 70-30 MIL SPEC SINGLE MATERIAL RESPONSE TUBES |
| Core Diameter | 10.250 INCHES NOMINAL IN |
| Tube Quantity | 394 |
| Tube Attachment Method | EXPANDED BOTH ENDS |
| Core Length | 4.500 INCHES NOMINAL IN |
| Tubing Outside Diameter | 0.250 INCHES NOMINAL OUTER TUBE OUTLET END IN |
| Nondefinitive Spec/std Data | A TYPE AND 1 CLASS |
| Material | COPPER ALLOY TUBES |
| 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 |
|---|---|
| 4M854B1 | C/1 Advisory reference — outside the item-of-supply concept Itt Corporation Dba Itt Standard |
| 4M854B1 | C/1 Advisory reference — outside the item-of-supply concept Fluid Handling Llc |
| A77648 | 5/9 Secondary reference Howden Buffalo, Inc Div Howden Gyrol Fluid Drives |
| MILC15730TYPEACLASS1 | 4/1 Identification reference U.S. Government activity |
| 4M854B1 | 3/9 Design control — primary reference Howden Buffalo, Inc Div Howden Gyrol Fluid Drives |
NSN 4420-00-360-2453 is a Core Assembly,fluid Cooler, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
Key specifications for 4420-00-360-2453: Effective Heat Transfer Surface Area: 116.0 SQUARE FEET; Material Document and Classification: MIL-C-15726,COMP 70-30 MIL SPEC SINGLE MATERIAL RESPONSE TUBES; Core Diameter: 10.250 INCHES NOMINAL IN; Tube Quantity: 394. 9 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.