# NSN 2990-01-132-9173: Muffler, Exhaust

NSN 2990-01-132-9173 (also written 2990011329173; NIIN 01-132-9173) is a muffler, exhaust in Federal Supply Class 2990, Miscellaneous Engine Accessories, Nonaircraft. 3 manufacturer part numbers from 3 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 2990-01-132-9173 (2990011329173)
- NIIN: 01-132-9173 (011329173)
- Item name: MUFFLER,EXHAUST
- 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 2026-10-13)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 63.750 |
| ACQW | INLET CONNECTION TYPE | SINGLE INLET UNTHREADED |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 10.120 |
| AJLW | OUTLET INSIDE DIAMETER | FIRST OUTLET INCHES NOMINAL 5.030 |
| APGF | DESIGN TYPE | DRY |
| ARNA | COOLANT TYPE | AIR |
| ARNG | BODY SHAPE | ROUND |
| ARNH | OPERATING POSITION | HORIZONTAL |
| ARNJ | INLET LOCATION | LOCATED 5.500 IN. FROM END ON SIDE OF BODY SINGLE INLET |
| ARNK | INLET PROJECTION LENGTH | SINGLE INLET INCHES NOMINAL 2.940 |
| ARTE | INLET INSIDE DIAMETER | SINGLE INLET INCHES NOMINAL 5.030 |
| ARTH | OUTLET CONNECTION TYPE | FIRST OUTLET UNTHREADED |
| ARTJ | OUTLET LOCATION | CENTRALLY LOCATED IN END SECTION OF BODY FIRST OUTLET |
| ARTK | OUTLET PROJECTION LENGTH | FIRST OUTLET INCHES NOMINAL 3.500 |
| MATT | MATERIAL | LOCATION NOT OTHERWISE SPECIFIED STEEL CORROSION RESISTING |
| SFTT | SURFACE TREATMENT | ALUMINUM ALLOY |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1309000 | 45152 | OSHKOSH CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 1309000 | 75Q65 | OSHKOSH DEFENSE LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MAM10-0417 | 18265 | DONALDSON COMPANY, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7L5-27-T-0121 | 11 | 2026-10-23 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2990011329173&category=nsn) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-16 | $977.33 | 11 | OSHKOSH DEFENSE LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990011329173) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-16 | [SPE7L527V0050](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990011329173) | MUFFLER, EXHAUST | OSHKOSH DEFENSE LLC | $10,750.63 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2990011329173&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990011329173
- 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/2990-01-132-9173/
JSON: https://nsnexplorer.com/api/nsn/2990-01-132-9173.json