# NSN 4120-01-551-9191: Environmental Control System

NSN 4120-01-551-9191 (also written 4120015519191; NIIN 01-551-9191) is an environmental control system in Federal Supply Class 4120, Air Conditioning Equipment. 4 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4120-01-551-9191 (4120015519191)
- NIIN: 01-551-9191 (015519191)
- Item name: ENVIRONMENTAL CONTROL SYSTEM
- Federal Supply Class: [FSC 4120 Air Conditioning Equipment](https://nsnexplorer.com/fsc/4120/)
- Federal Supply Group: [FSG 41](https://nsnexplorer.com/group/41/)
- Acquisition method suffix code: AMSC P: the government does not own the rights to the data needed for more sources. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | FAMILY OF MEDIUM TACTICAL VEHICLES (FMTV),5TON |
| FEAT | SPECIAL FEATURES | 48K BTU COOLING/20K BTU HEATING,208-230VAC,3PHASE,50/60HZ,R134A CHARGE 10LB 8OZ (168 OUNCES) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 12443857-001 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 2K48AF6AH-MIL | 0WJE1 | HDT EXPEDITIONARY SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 86301-477 | 80298 | AAR MANUFACTURING, INC. DBA AAR MOBILITY SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KS4853CAAFHMX | 0WJE1 | HDT EXPEDITIONARY SYSTEMS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-13 | $52,000.00 | 1 | WINDWARD ENTERPRISES, LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4120015519191) |
| 2026-10-09 | $52,000.00 | 1 | WINDWARD ENTERPRISES, LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4120015519191) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-15 | [SPE8E827V0065](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4120015519191) | ENVIRONMENTAL CONTROL SYSTEM | WINDWARD ENTERPRISES, LLC | $52,000.00 |
| 2026-10-13 | [SPE8E827V0050](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4120015519191) | ENVIRONMENTAL CONTROL SYSTEM | WINDWARD ENTERPRISES, LLC | $52,000.00 |
| 2026-10-09 | [SPE8E827V0040](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4120015519191) | ENVIRONMENTAL CONTROL SYSTEM | WINDWARD ENTERPRISES, LLC | $52,000.00 |
| 2026-10-08 | [SPE8E827V0037](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4120015519191) | ENVIRONMENTAL CONTROL SYSTEM | WINDWARD ENTERPRISES, LLC | $52,000.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4120015519191&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4120015519191
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/4120-01-551-9191/
JSON: https://nsnexplorer.com/api/nsn/4120-01-551-9191.json