The Muffler,exhaust, cataloged under National Stock Number 2990-00-049-3603, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Briggs and Stratton Corp. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-049-3603 |
| Primary Part Number | 290029 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Briggs and Stratton Corp |
| Status | ACTIVE |
| Design Type | DRY |
| Inlet Projection Length | 3.000 INCHES NOMINAL SINGLE INLET IN |
| Coolant Type | AIR |
| Outlet Outside Diameter | 0.814 INCHES NOMINAL FIRST OUTLET IN |
| Baffle Quantity | 1 |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Muffler Design | BAFFLE |
| Inlet Thread Size | 0.500-14 SINGLE INLET |
| Nonconnection Outlet Location | CENTRALLY LOCATED IN END SECTION |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Overall Diameter | 1.688 INCHES NOMINAL IN |
| Nonconnection Outlet Type and Quantity | 1 ROUND HOLE |
| Nonconnection Outlet Size | 0.814 IN. DIA IN |
| Operating Position | HORIZONTAL |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2990-00-049-3603 is a Muffler,exhaust, manufactured by Briggs and Stratton Corp, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-049-3603 has 2 cross-referenced part numbers: 7034871 (U S Army Tank Automotive Command Amsta-Im-Mm), 290029 (Briggs and Stratton Corp).
There is 1 known substitute for 2990-00-049-3603: 4920-00-924-1257. Verify interchangeability with system specifications before substitution.
Key specifications for 290029: Design Type: DRY; Inlet Projection Length: 3.000 INCHES NOMINAL SINGLE INLET IN; Coolant Type: AIR; Outlet Outside Diameter: 0.814 INCHES NOMINAL FIRST OUTLET IN. 18 total characteristics are documented in the Federal Logistics Information System.