We are pleased to confirm immediate availability for 68449 (Muffler Exhaust), carrying NSN 2990-00-328-6423 and manufactured by Briggs And Stratton Corp (CAGE code 08645). This certified component is classified under FSG 29 Engine Accessories/FSC 2990 Miscellaneous Engine Accessories Nonaircraft (NIIN: 00-328-6423), meeting all military specifications for guaranteed traceability and performance compliance.
To receive a rapid quote for part 68449 (15-minute response guaranteed), please complete the form below. Providing detailed requirements ensures our specialists can quickly deliver competitive pricing, verified availability, and exact specification matching for NSN 2990-00-328-6423. Rest assured, you’ll receive the precise aerospace component your project demands.
Note : We Will Not Share Your Information To Any Third Parties.
Aviation Purchasing Platform is a trusted sourcing solution owned and operated by ASAP Semiconductor—an AS9120B, ISO 9001:2015, and FAA 0056B certified distributor. With access to over 10 million national stock numbers (NSNs) across 26+ federal supply categories, we specialize in procuring rare, obsolete, and long-lead-time components, including Briggs And Stratton Corp parts. Our industry-leading turnaround and delivery ensure rapid fulfillment for critical aerospace and defense needs.
Every 2990-00-328-6423—including this part—is uniquely labeled to reflect its integration into the U.S. DoD supply system. As a National Stock Number, it signifies compliance with NATO and U.S. Department of Defense standards, ensuring traceability, quality, and interoperability across allied military operations.
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 2990-00-328-6423 Item Description: Mufflerexhaust | 2990 | 003286423 | 0 | N | 2990004748177 | |
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | U | |||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| 291244 | 2 | 1 | C | A |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | OVERALL LENGTH | 5 000 INCHES NOMINAL |
| ACQW | INLET CONNECTION TYPE | THREADED |
| ACRX | INLET THREAD DIRECTION | RIGHT-HAND |
| ADAV | OVERALL DIAMETER | 4 125 INCHES NOMINAL |
| APGF | DESIGN TYPE | DRY |
| ARNA | COOLANT TYPE | AIR |
| ARND | MUFFLER DESIGN | MULTIPASS |
| ARNG | BODY SHAPE | ROUND |
| ARNH | OPERATING POSITION | HORIZONTAL |
| ARNJ | INLET LOCATION | CENTRALLY LOCATED IN END SECTION OF BODY |
| ARNK | INLET PROJECTION LENGTH | 2 125 INCHES NOMINAL |
| ARNW | INLET THREAD SIZE | 34-14 |
| ARSP | INLET THREAD LOCATION | EXTERNAL |
| ARXY | NONCONNECTION OUTLET TYPE AND QUANTITY | 7 ROUND HOLE |
| ARXZ | NONCONNECTION OUTLET LOCATION | EQUALLY SPACED IN BODY |
| ARYA | NONCONNECTION OUTLET SIZE | 0 219 IN DIA |
| MATT | MATERIAL | STEEL |
| ZZZV | FSC APPLICATION DATA | MISCELLANEOUS ENGINE ACCESSORIESNONAIRCRAFT |
Million
Parts Sold
Million
Parts Avalilable
Thousand
Happy Customers
Thousand
Daily Parts Searches
|
AS9120B and ISO 9001:2015 |
|
Aviation Suppliers Association Member |
|
FAA AC 0056B Accredited |
|
AS 6081:2012 Certification |
|
ESD S20.20-2014 Certification |
