# NSN 2990-01-506-0451: Heater, Coolant, Engine

NSN 2990-01-506-0451 (also written 2990015060451; NIIN 01-506-0451) is a heater, coolant, engine in Federal Supply Class 2990, Miscellaneous Engine Accessories, Nonaircraft. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 2990-01-506-0451 (2990015060451)
- NIIN: 01-506-0451 (015060451)
- Item name: HEATER,COOLANT,ENGINE
- Federal Supply Class: [FSC 2990 Miscellaneous Engine Accessories, Nonaircraft](https://nsnexplorer.com/fsc/2990/)
- Federal Supply Group: [FSG 29](https://nsnexplorer.com/group/29/)
- Acquisition method suffix code: AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | ENGINE, DIESEL MDL 3512B. DIESEL, CAT 3512B |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 130-1595 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 225-3355 REF NO 8 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-10 | [SPE7LX21D0087/SPE7LX26FB7XM](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990015060451) | HEATER, COOLANT, ENGINE | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $5,010.71 |
| 2026-08-17 | [SPE7LX21D0087/SPE7LX26FB0CV](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990015060451) | HEATER, COOLANT, ENGINE | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $9,701.58 |
| 2026-08-14 | [SPE7LX21D0087/SPE7LX26FB8R0](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990015060451) | HEATER, COOLANT, ENGINE | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $4,850.79 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2990015060451&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990015060451
- 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/2990-01-506-0451/
JSON: https://nsnexplorer.com/api/nsn/2990-01-506-0451.json