# NSN 2990-01-640-8500: Exhaust System, Engine

NSN 2990-01-640-8500 (also written 2990016408500; NIIN 01-640-8500) is an exhaust system, engine in Federal Supply Class 2990, Miscellaneous Engine Accessories, Nonaircraft. 5 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 2990-01-640-8500 (2990016408500)
- NIIN: 01-640-8500 (016408500)
- Item name: EXHAUST SYSTEM,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 B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-23)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | HMMWV |
| SFTT | SURFACE TREATMENT | PASSIVATE |
| MATT | MATERIAL | STEEL CORROSION RESISTING |
| FEAT | SPECIAL FEATURES | NHA:12460078 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | EXHAUST SYSTEM,MUFFLER |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 49.60 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 12563624 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 24433B | 4NUL7 | NELSON GLOBAL PRODUCTS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3043803 | 34623 | AM GENERAL LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6043803 | 34623 | AM GENERAL LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6043803 | 4NUL7 | NELSON GLOBAL PRODUCTS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-15 | [SPE7LX20D0222/SPE7LX26F07UC](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990016408500) | EXHAUST SYSTEM, ENGINE | AM GENERAL LLC | $19,691.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2990016408500&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990016408500
- 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/2990-01-640-8500/
JSON: https://nsnexplorer.com/api/nsn/2990-01-640-8500.json