The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-504-5634, 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 9 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-504-5634 |
| Primary Part Number | 5-613-21-039-006 |
| 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 | 30.625 INCHES NOMINAL IN |
| Style Designator | UPRIGHT STRAIGHT FINNED TYPE |
| Material Document and Classification | AISI316 ASSN STD SINGLE MATERIAL RESPONSE PLATES |
| Tube Quantity | 39 |
| Height | 66.000 INCHES NOMINAL IN |
| Material | STEEL SHELL |
| Material | STEEL COMP 316 PLATES |
| Thickness | 6.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 5-613-21-039-006 PRIMARY | Fluid Handling Llc (USA) |
| Reference | Meaning |
|---|---|
| 4-750-21-039-006 | D/9 Drawing number reference only Fluid Handling Llc |
| 5-613-21-039-006 REV A | 5/9 Secondary reference Itt Corporation Dba Itt Standard |
| 5-613-21-039-006 REV A | D/9 Drawing number reference only Fluid Handling Llc |
| 4-750-21-039-006 | 5/9 Secondary reference Itt Corporation Dba Itt Standard |
| 5-613-21-039-006 | 5/9 Secondary reference Itt Corporation Dba Itt Standard |
NSN 4420-01-504-5634 is a Cooler,fluid,industrial, manufactured by Fluid Handling Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-504-5634 has 1 manufacturer part number on file: 5-613-21-039-006 (Fluid Handling Llc).
3 possible matches (shared part number, not a government interchangeability claim): 4420-01-504-6304, 4420-01-504-6311, 4420-01-504-6337. Verify interchangeability with system specifications before substitution.
Key specifications for 5-613-21-039-006: Heat Transfer Method: INDIRECT; Length: 30.625 INCHES NOMINAL IN; Style Designator: UPRIGHT STRAIGHT FINNED TYPE; Material Document and Classification: AISI316 ASSN STD SINGLE MATERIAL RESPONSE PLATES. 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.