The Muffler,exhaust, cataloged under National Stock Number 2990-01-004-1941, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Cummins Filtration Inc.. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-004-1941 |
| Primary Part Number | T-12921 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Inlet Inside Diameter | 2.500 INCHES NOMINAL SINGLE INLET IN |
| Outlet Location | LOCATED IN CENTER OF END SECTION OPPOSITE INLET |
| Outlet Outside Diameter | 2.000 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Location | LOCATED IN BOTTOM OF END SECTION |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Coolant Type | AIR |
| Inlet Projection Length | 5.380 INCHES NOMINAL SINGLE INLET IN |
| Outlet Inside Diameter | 2.880 INCHES NOMINAL FIRST OUTLET IN |
| Baffle Quantity | 2 |
| Operating Position | HORIZONTAL |
| Design Type | DRY |
| Tube Quantity | 1 |
| Overall Diameter | 7.120 INCHES NOMINAL IN |
| Muffler Design | BAFFLE W/INTEGRAL SPARK ARRESTOR |
| Body Shape | ROUND |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Surface Treatment | PLASTIC POLYPROPYLENE |
| Inlet Outside Diameter | 2.620 INCHES NOMINAL SINGLE INLET IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Projection Length | 2.500 INCHES NOMINAL FIRST OUTLET IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 12921 | Cummins Filtration Inc. (USA) |
| 239798 | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| T-12921 PRIMARY | Cummins Filtration Inc. (USA) |
| 239798 | Hyster-Yale Group, Inc. (USA) |
| ABT12921 | Brighton Cromwell Llc (USA) |
| ABT12921 | Ar Bee Corp (USA) |
NSN 2990-01-004-1941 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-01-004-1941 has 6 cross-referenced part numbers: 12921 (Cummins Filtration Inc.), 239798 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling), T-12921 (Cummins Filtration Inc.), 239798 (Hyster-Yale Group, Inc.), ABT12921 (Brighton Cromwell Llc) and 1 more.
There are 9 known substitutes for 2990-01-004-1941: 1650-00-072-2237, 5340-00-078-7327, 5325-00-105-4384 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-12921: Inlet Inside Diameter: 2.500 INCHES NOMINAL SINGLE INLET IN; Outlet Location: LOCATED IN CENTER OF END SECTION OPPOSITE INLET; Special Features: FURNISHED WITH 0.750 IN. NPT CLEANOUT PLUG IN; Outlet Outside Diameter: 2.000 INCHES NOMINAL FIRST OUTLET IN. 22 total characteristics are documented in the Federal Logistics Information System.