# NSN 2990-01-293-4462: Muffler, Exhaust

NSN 2990-01-293-4462 (also written 2990012934462; NIIN 01-293-4462) is a muffler, exhaust 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: 2990-01-293-4462 (2990012934462)
- NIIN: 01-293-4462 (012934462)
- 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 B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHP | OVERALL LENGTH | INCHES MINIMUM 29.250 AND INCHES MAXIMUM 30.000 |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 10.380 |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 15.380 |
| ACQW | INLET CONNECTION TYPE | SINGLE INLET UNTHREADED |
| AGAV | END ITEM IDENTIFICATION | 2350-01-248-7619; ARMORED MULTI-PURPOSE VEHICLE (AMPV) |
| APGF | DESIGN TYPE | JACKETED |
| ARNG | BODY SHAPE | OVAL |
| ARNJ | INLET LOCATION | LOCATED IN END SECTION OF BODY SINGLE INLET |
| ARNK | INLET PROJECTION LENGTH | SINGLE INLET INCHES NOMINAL 2.560 |
| ARTH | OUTLET CONNECTION TYPE | FIRST OUTLET UNTHREADED |
| ARTJ | OUTLET LOCATION | LOCATED 6.41 IN. C TO C OFFSET DISTANCE FROM INLET FIRST OUTLET |
| ARWA | OUTLET OUTSIDE DIAMETER | FIRST OUTLET INCHES NOMINAL 6.0 |
| ARXY | NONCONNECTION OUTLET TYPE AND QUANTITY | TUBE 1 |
| ARXZ | NONCONNECTION OUTLET LOCATION | LOCATED 6.250 IN. OFFSET FROM END OF BODY |
| ARYB | HAND HOLE QUANTITY | 4 |
| MATT | MATERIAL | LOCATION NOT OTHERWISE SPECIFIED STEEL |
| MATT | MATERIAL | INSULATION GLASS FIBER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | LOCATION NOT OTHERWISE SPECIFIED MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-4174 |
| SFTT | SURFACE TREATMENT | ALUMINUM |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 12358910 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 18265-WJM12-0422 | 18265 | DONALDSON COMPANY, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 22018-A | 76700 | CUMMINS FILTRATION INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 76700-22018-A | 76700 | CUMMINS FILTRATION INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| WJM12-0422 | 18265 | DONALDSON COMPANY, 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 | [SPE7LX26D0016/SPE7L126F188S](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990012934462) | MUFFLER, EXHAUST | SEAL DYNAMICS LLC | $85,500.00 |
| 2026-08-27 | [SPE7LX26D0016/SPE7L126F149E](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990012934462) | MUFFLER, EXHAUST | SEAL DYNAMICS LLC | $85,500.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2990012934462&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990012934462
- 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/2990-01-293-4462/
JSON: https://nsnexplorer.com/api/nsn/2990-01-293-4462.json