The Core Assembly,fluid Cooler, cataloged under National Stock Number 4420-01-630-7693, 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 Johnson Controls Navy Systems, Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 — Heat Exchangers and Steam Condensers (FSG 44) |
| Manufacturers | Johnson Controls Navy Systems, Llc (CAGE 66935) |
| Parameter | Value |
|---|---|
| NSN | 4420-01-630-7693 |
| Primary Part Number | 377-22155-000 |
| Item Name | Core Assembly,fluid Cooler |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Johnson Controls Navy Systems, 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 |
|---|---|
| 077-22047-000 | Johnson Controls Navy Systems, Llc (USA) |
| 377-22155-000 PRIMARY | Johnson Controls Navy Systems, Llc (USA) |
NSN 4420-01-630-7693 is a Core Assembly,fluid Cooler, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-630-7693 has 2 manufacturer part numbers on file: 077-22047-000 (Johnson Controls Navy Systems, Llc), 377-22155-000 (Johnson Controls Navy Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-630-8045. Verify interchangeability with system specifications before substitution.
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.