The Muffler,exhaust, cataloged under National Stock Number 2990-00-736-7906, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Briggs and Stratton Corp. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-736-7906 |
| Primary Part Number | 294599 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Briggs and Stratton Corp |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Coolant Type | AIR |
| Design Type | DRY |
| Overall Diameter | 2.386 INCHES NOMINAL IN |
| Outlet Inside Diameter | 0.875 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Inlet Projection Length | 1.375 INCHES NOMINAL SINGLE INLET IN |
| Muffler Design | STRAIGHT THROUGH W/BAFFLE |
| Outlet Outside Diameter | 1.062 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Connection Type | THREADED SINGLE INLET |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Body Shape | ROUND |
| Inlet Thread Size | 3/4-14 SINGLE INLET |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 0.375 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 294599 PRIMARY | Briggs and Stratton Corp (USA) |
| Reference | Meaning |
|---|---|
| FL1000G294599 | 5/9 Secondary reference Wiens Metal Products Inc Road Equipment Div |
| 294599 | 5/9 Secondary reference Gregory Engineering Corp |
NSN 2990-00-736-7906 is a Muffler,exhaust, manufactured by Briggs and Stratton Corp, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-736-7906 has 1 manufacturer part number on file: 294599 (Briggs and Stratton Corp).
Key specifications for 294599: Operating Position: HORIZONTAL; Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY; Coolant Type: AIR; Design Type: DRY. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.