The Muffler,exhaust, cataloged under National Stock Number 2990-01-294-9824, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Morris Material Handling, Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-294-9824 |
| Primary Part Number | 27Q334 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Morris Material Handling, Inc. |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Coolant Type | AIR |
| Design Type | DRY |
| Overall Diameter | 10.125 INCHES NOMINAL IN |
| Outlet Inside Diameter | 4.000 INCHES NOMINAL FIRST OUTLET IN |
| Muffler Design | STRAIGHT THROUGH |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Body Shape | ROUND |
| Inlet Inside Diameter | 4.000 INCHES NOMINAL SINGLE INLET IN |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
NSN 2990-01-294-9824 is a Muffler,exhaust, manufactured by Morris Material Handling, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-294-9824 has 2 manufacturer part numbers on file: 27Q334 (Morris Material Handling, Inc.), M10048 (Donaldson Company, Inc.).
Key specifications for 27Q334: Operating Position: HORIZONTAL; Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY; Coolant Type: AIR; Design Type: DRY. 13 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.