The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-689-4207, 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 Boyd Niagara, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-689-4207 |
| Primary Part Number | 44593A |
| Item Name | Cooler,fluid,industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Boyd Niagara, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 44593A PRIMARY | Boyd Niagara, Llc (USA) |
| Reference | Meaning |
|---|---|
| 311-8592496 REV A FIND NO. 109 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4420-01-689-4207 is a Cooler,fluid,industrial, manufactured by Boyd Niagara, Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-689-4207 has 1 manufacturer part number on file: 44593A (Boyd Niagara, Llc).
Key specifications for 44593A: Part Name Assigned by Controlling Agency: HEAT EXCHANGER; End Item Identification: LUBE OIL COOL. 0 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.