The Muffler,exhaust, cataloged under National Stock Number 2990-00-400-5115, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Wheeler Fleet Solutions, Co.. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-400-5115 |
| Primary Part Number | 1918-2000-51213 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Wheeler Fleet Solutions, Co. |
| Status | ACTIVE |
| Operating Position | VERTICAL |
| Inlet Location | OFFSET FROM CENTER OF END OF BODY |
| Coolant Type | AIR |
| Design Type | DRY |
| Overall Diameter | 4.375 INCHES NOMINAL IN |
| Outlet Inside Diameter | 1.187 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Outlet Outside Diameter | 1.312 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Connection Type | THREADED SINGLE INLET |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Body Shape | ROUND |
| Inlet Thread Size | 1-1/4-12 SINGLE INLET |
| Inlet Thread Series Designator | UNF SINGLE INLET |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Location | OFFSET FROM CENTER OF END 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 |
|---|---|
| 1918-2000-51213 PRIMARY | Wheeler Fleet Solutions, Co. (USA) |
| 2000-51213 PRIMARY | Advanced Industries, Llc (USA) |
NSN 2990-00-400-5115 is a Muffler,exhaust, manufactured by Wheeler Fleet Solutions, Co., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-400-5115 has 2 manufacturer part numbers on file: 1918-2000-51213 (Wheeler Fleet Solutions, Co.), 2000-51213 (Advanced Industries, Llc).
Key specifications for 1918-2000-51213: Operating Position: VERTICAL; Inlet Location: OFFSET FROM CENTER OF END OF BODY; Coolant Type: AIR; Design Type: DRY. 16 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.