The Environmental Control System, cataloged under National Stock Number 4120-01-643-3907, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Applied Companies. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Environmental Control System |
| FSC / FSG | 4120 — Air Conditioning Equipment (FSG 41) |
| Manufacturers | Applied Companies (CAGE 54080) |
| Parameter | Value |
|---|---|
| NSN | 4120-01-643-3907 |
| Primary Part Number | 52229-2 |
| Item Name | Environmental Control System |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Manufacturer | Applied Companies |
| 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 |
|---|---|
| 52229-2 PRIMARY | Applied Companies (USA) |
NSN 4120-01-643-3907 is a Environmental Control System, manufactured by Applied Companies, classified under FSC 4120, Air Conditioning Equipment. Status: active.
NSN 4120-01-643-3907 has 1 manufacturer part number on file: 52229-2 (Applied Companies).
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.