The Control Unit,microclimate, cataloged under National Stock Number 4120-01-660-1898, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Drs Environmental Systems Inc. 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 | Control Unit,microclimate |
| FSC / FSG | 4120 — Air Conditioning Equipment (FSG 41) |
| Manufacturers | Drs Environmental Systems Inc (CAGE 5RQL2); Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (CAGE 19200) |
| Parameter | Value |
|---|---|
| NSN | 4120-01-660-1898 |
| Primary Part Number | 199K1214-101 |
| Item Name | Control Unit,microclimate |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Manufacturer | Drs Environmental Systems Inc |
| 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 |
|---|---|
| 199K1214-101 PRIMARY | Drs Environmental Systems Inc (USA) |
| 13055997 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 4120-01-660-1898 is a Control Unit,microclimate, manufactured by Drs Environmental Systems Inc, classified under FSC 4120, Air Conditioning Equipment. Status: active.
NSN 4120-01-660-1898 has 2 manufacturer part numbers on file: 199K1214-101 (Drs Environmental Systems Inc), 13055997 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
1 possible match (shared part number, not a government interchangeability claim): 5940-01-662-9123. 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.