# NSN 2990-01-275-8501: Exhaust System, Engine

NSN 2990-01-275-8501 (also written 2990012758501; NIIN 01-275-8501) is an exhaust system, engine in Federal Supply Class 2990, Miscellaneous Engine Accessories, Nonaircraft. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 2990-01-275-8501 (2990012758501)
- NIIN: 01-275-8501 (012758501)
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | GROUND POWER UNIT MN1A-60 |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | SWITCH P/N MS16106-18; HOUSING,ACTUATOR SWITCH P/N 8446625; WIRE HARNESS P/N8446302; EQUIPED WITH CLOSING LID TO KEEP MOISTURE OUT WHEN NOT OPERATING |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 8446009 | 36024 | LIBBY POWER SYSTEMS, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-22 | [SPE7M126D61EB/SPE7L026F7827](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990012758501) | EXHAUST SYSTEM, ENGINE | LIBBY POWER SYSTEMS, LLC | $68,960.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2990012758501&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990012758501
- 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/2990-01-275-8501/
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