The Muffler,exhaust, cataloged under National Stock Number 2990-01-496-0455, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Daimler Truck North America Llc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-496-0455 |
| Primary Part Number | DN M10 1160 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Daimler Truck North America Llc |
| Status | ACTIVE |
| Operating Position | VERTICAL |
| Inlet Outside Diameter | 127.26 MILLIMETERS MINIMUM AND 128.02 MILLIMETERS MAXIMUM SINGLE INLET MM |
| Inlet Location | CENTRALLY IN END OF BODY |
| Design Type | DRY |
| Overall Diameter | 255.5 MILLIMETERS NOMINAL MM |
| Outlet Inside Diameter | 127.0 MILLIMETERS NOMINAL FIRST OUTLET MM |
| Inlet Projection Length | 76.2 MILLIMETERS NOMINAL SINGLE INLET MM |
| Baffle Quantity | 2 |
| Muffler Design | STRAIGHT THROUGH |
| Outlet Outside Diameter | 127.26 MILLIMETERS MINIMUM AND 128.02 MILLIMETERS MAXIMUM FIRST OUTLET MM |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Body Shape | ROUND |
| Surface Treatment | ALUMINUM ALLOY |
| Inlet Inside Diameter | 127.0 MILLIMETERS NOMINAL SINGLE INLET MM |
| Material | STEEL CORROSION RESISTING LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 130.3 MILLIMETERS MINIMUM AND 136.3 MILLIMETERS MAXIMUM FIRST OUTLET MM |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Location | CENTRALLY IN 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 |
|---|---|
| DN MFM10 1160 | Daimler Truck North America Llc (USA) |
| DN M10 1160 PRIMARY | Daimler Truck North America Llc (USA) |
| M101160 | Donaldson Company, Inc. (USA) |
| MFM101160 | Donaldson Company, Inc. (USA) |
NSN 2990-01-496-0455 is a Muffler,exhaust, manufactured by Daimler Truck North America Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-496-0455 has 4 manufacturer part numbers on file: DN MFM10 1160 (Daimler Truck North America Llc), DN M10 1160 (Daimler Truck North America Llc), M101160 (Donaldson Company, Inc.), MFM101160 (Donaldson Company, Inc.).
Key specifications for DN M10 1160: Operating Position: VERTICAL; Inlet Outside Diameter: 127.26 MILLIMETERS MINIMUM AND 128.02 MILLIMETERS MAXIMUM SINGLE INLET MM; Inlet Location: CENTRALLY IN END OF BODY; Design Type: DRY. 18 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.