# NSN 2990-00-612-7783: Muffler, Exhaust

NSN 2990-00-612-7783 (also written 2990006127783; NIIN 00-612-7783) is a muffler, exhaust in Federal Supply Class 2990, Miscellaneous Engine Accessories, Nonaircraft. 5 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 2990-00-612-7783 (2990006127783)
- NIIN: 00-612-7783 (006127783)
- 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 L: annual buy value is below the screening threshold. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| APGF | DESIGN TYPE | DRY |
| ARSP | INLET THREAD LOCATION | SINGLE INLET INTERNAL |
| ARNW | INLET THREAD SIZE | 0.500-14 |
| ARNX | INLET THREAD SERIES DESIGNATOR | SINGLE INLET NPT |
| ARNG | BODY SHAPE | ROUND |
| ARNJ | INLET LOCATION | CENTERLLY LOCATED IN. END SECTION SINGLE INLET |
| ARNK | INLET PROJECTION LENGTH | SINGLE INLET INCHES NOMINAL 0.500 |
| AAJF | THREAD DIRECTION | SINGLE INLET RIGHT-HAND |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 3.250 |
| ACQW | INLET CONNECTION TYPE | SINGLE INLET THREADED |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 1.250 |
| ARND | MUFFLER DESIGN | MULTIPASS |
| ARNA | COOLANT TYPE | AIR |
| MATT | MATERIAL | LOCATION NOT OTHERWISE SPECIFIED ALUMINUM ALLOY |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 26459 | 98853 | HAMILTON STANDARD ELECTRONICS SYSTEMS INC TELE-DYNAMICS DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 322AS162-1 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 32AS162-1 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| B10195 | 56190 | METADURE PARTS & SALES, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| B10195 | 96787 | STEWART AVIONICS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-06 | $169.00 | 23 | METADURE PARTS & SALES, INC. | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990006127783) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-06 | [SPE7L527V0004](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990006127783) | MUFFLER, EXHAUST | METADURE PARTS & SALES, INC. | $3,887.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=2990006127783&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=2990006127783
- 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/2990-00-612-7783/
JSON: https://nsnexplorer.com/api/nsn/2990-00-612-7783.json