The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-429-5363, 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 Fluid Handling Llc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-429-5363 |
| Primary Part Number | 512631108001 |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Fluid Handling Llc |
| Status | ACTIVE |
| Heat Transfer Method | INDIRECT |
| Length | 134.125 INCHES NOMINAL IN |
| Style Designator | PLAIN U-TUBE |
| Material Document and Classification | MIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE TUBE SHEET |
| Material Document and Classification | MIL-T-22214,TYPE II,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE TUBES |
| Tube Quantity | 178 |
| Tubing Outside Diameter | 0.500 INCHES NOMINAL BOTH INLET AND OUTLET TUBE ENDS IN |
| Height | 42.500 INCHES NOMINAL IN |
| Material | STEEL SHELL |
| Material | COPPER ALLOY AND NICKEL ALLOY TUBES |
| Material | STEEL PLATES |
| Material | COPPER ALLOY AND NICKEL ALLOY TUBE SHEET |
| 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 |
|---|---|
| 512631108001 PRIMARY | Fluid Handling Llc (USA) |
| Reference | Meaning |
|---|---|
| 512631108001 | 5/9 Secondary reference Itt Corporation Dba Itt Standard |
NSN 4420-01-429-5363 is a Cooler,fluid,industrial, manufactured by Fluid Handling Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-429-5363 has 1 manufacturer part number on file: 512631108001 (Fluid Handling Llc).
1 possible match (shared part number, not a government interchangeability claim): 4420-01-429-5368. Verify interchangeability with system specifications before substitution.
Key specifications for 512631108001: Heat Transfer Method: INDIRECT; Length: 134.125 INCHES NOMINAL IN; Style Designator: PLAIN U-TUBE; Material Document and Classification: MIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE TUBE SHEET. 12 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.