The Muffler,exhaust, cataloged under National Stock Number 2990-01-067-7676, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Cummins Filtration Inc.. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2990-01-067-7676 |
| Primary Part Number | T-12384 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Inlet Flange Shape | OVAL SINGLE INLET |
| Operating Position | HORIZONTAL |
| Inlet Location | LOCATED OFF CENTER IN THE END SECTION OF THE BODY,1.380 FROM CENTERLINE |
| Design Type | JACKETED |
| Overall Diameter | 8.120 INCHES NOMINAL IN |
| Outlet Inside Diameter | 2.000 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Projection Length | 4.750 INCHES NOMINAL SINGLE INLET IN |
| Baffle Quantity | 2 |
| Inlet Flange Mounting Hole Diameter | 0.440 INCHES NOMINAL SINGLE INLET IN |
| Muffler Design | MULTIPASS |
| Outlet Outside Diameter | 2.495 INCHES NOMINAL FIRST OUTLET IN |
| Tube Quantity | 3 |
| Inlet Connection Type | FLANGE SINGLE INLET |
| Body Shape | ROUND |
| Inlet Flange Mounting Provision and Quantity | 2 HOLES SINGLE INLET |
| Surface Treatment | PAINT |
| Material | ASBESTOS INSULATION |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 4.742 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Location | LOCATED OFF CENTER 1.380 FROM CENTERLINE IN THE 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 |
|---|---|
| T-12384 PRIMARY | Cummins Filtration Inc. (USA) |
| R43819/R47926 | Cnh Industrial America Llc Dba Cnh America (USA) |
| Reference | Meaning |
|---|---|
| R25522 | 5/9 Secondary reference Cnh Industrial America Llc Dba Cnh America |
NSN 2990-01-067-7676 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-067-7676 has 2 manufacturer part numbers on file: T-12384 (Cummins Filtration Inc.), R43819/R47926 (Cnh Industrial America Llc Dba Cnh America).
Key specifications for T-12384: Inlet Flange Shape: OVAL SINGLE INLET; Operating Position: HORIZONTAL; Inlet Location: LOCATED OFF CENTER IN THE END SECTION OF THE BODY,1.380 FROM CENTERLINE; Design Type: JACKETED. 21 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.