The Core Assembly,fluid Heater,indus, cataloged under National Stock Number 4420-01-039-2782, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-039-2782 |
| Item Name | Core Assembly,fluid Heater,indus |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Status | ACTIVE |
| Effective Heat Transfer Surface Area | 90.3 SQUARE FEET |
| Style Designator | PLAIN "U" TUBE |
| Material Document and Classification | MIL-T-16286,CLASS A MIL SPEC SINGLE MATERIAL RESPONSE TUBES |
| Tube Quantity | 32 |
| Tube Attachment Method | EXPANDED BOTH ENDS |
| Tubing Outside Diameter | 0.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Material | STEEL 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 |
|---|---|
| 4-284-08-102-001 | 3/9 Design control — primary reference Howden Buffalo, Inc Div Howden Gyrol Fluid Drives |
| 4-284-08-102-001 | 5/9 Secondary reference Itt Corporation Dba Itt Standard |
| 5-131-08-102-001PC2 | 5/9 Secondary reference Howden Buffalo, Inc Div Howden Gyrol Fluid Drives |
NSN 4420-01-039-2782 is a Core Assembly,fluid Heater,indus, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
Key specifications for 4420-01-039-2782: Effective Heat Transfer Surface Area: 90.3 SQUARE FEET; Style Designator: PLAIN "U" TUBE; Material Document and Classification: MIL-T-16286,CLASS A MIL SPEC SINGLE MATERIAL RESPONSE TUBES; Tube Quantity: 32. 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.