The Muffler,exhaust, cataloged under National Stock Number 2990-00-993-0447, 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 25 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2990-00-993-0447 |
| Primary Part Number | T-5080 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| FSC Application Data | MUFFLERS,EXHAUST,ENGINE,EXCEPT AIRCRAFT AND GUIDED MISSILE PRIME MOVING |
| Outlet Thread Size | 1-1/2-14 FIRST OUTLET |
| Inlet Location | OFFSET IN END SECTION OF BODY 1.750 IN. C OF INLET TO C OF BODY IN |
| Coolant Type | AIR |
| Design Type | DRY |
| Overall Diameter | 5.625 INCHES NOMINAL IN |
| Outlet Thread Direction | RIGHT-HAND FIRST OUTLET |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Inlet Projection Length | 2.562 INCHES NOMINAL SINGLE INLET IN |
| Baffle Quantity | 1 |
| Outlet Thread Series Designator | NPT FIRST OUTLET |
| Muffler Design | BAFFLE |
| Thread Location | EXTERNAL FIRST OUTLET |
| Tube Quantity | 3 |
| Inlet Connection Type | THREADED SINGLE INLET |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Body Shape | ROUND |
| Inlet Thread Size | 1-1/2-14 SINGLE INLET |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Surface Treatment | ALUMINUM |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 2.125 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Connection Type | THREADED FIRST OUTLET |
| Outlet Location | OFFSET IN END SECTION OF BODY 1.312 IN. C OF OUTLET TO C OF BODY IN |
| 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-5080 PRIMARY | Cummins Filtration Inc. (USA) |
| WD50A | Wisconsin Motors, Llc (USA) |
| ABT5080 | Brighton Cromwell Llc (USA) |
| Reference | Meaning |
|---|---|
| 5080 | D/9 Drawing number reference only Cummins Filtration Inc. |
| ABT5080 | 5/9 Secondary reference Ar Bee Corp |
NSN 2990-00-993-0447 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-993-0447 has 3 manufacturer part numbers on file: T-5080 (Cummins Filtration Inc.), WD50A (Wisconsin Motors, Llc), ABT5080 (Brighton Cromwell Llc).
Key specifications for T-5080: Operating Position: HORIZONTAL; FSC Application Data: MUFFLERS,EXHAUST,ENGINE,EXCEPT AIRCRAFT AND GUIDED MISSILE PRIME MOVING; Outlet Thread Size: 1-1/2-14 FIRST OUTLET; Inlet Location: OFFSET IN END SECTION OF BODY 1.750 IN. C OF INLET TO C OF BODY IN. 25 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.