The Muffler,exhaust, cataloged under National Stock Number 2990-00-603-4791, 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 24 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-603-4791 |
| Primary Part Number | T-7258 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Outlet Thread Series Designator | NPT FIRST OUTLET |
| Surface Treatment | ALUMINUM |
| Overall Diameter | 5.625 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Tube Quantity | 1 |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Thread Location | EXTERNAL FIRST OUTLET |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Connection Type | THREADED FIRST OUTLET |
| Muffler Design | BAFFLE |
| Inlet Projection Length | 1.625 INCHES NOMINAL SINGLE INLET IN |
| Operating Position | HORIZONTAL |
| Coolant Type | AIR |
| Design Type | DRY |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Inlet Connection Type | THREADED SINGLE INLET |
| Outlet Thread Direction | RIGHT-HAND FIRST OUTLET |
| Outlet Projection Length | 2.000 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Thread Size | 1-1/4-11-1/2 SINGLE INLET |
| Outlet Thread Size | 1-1/4-11-1/2 FIRST OUTLET |
| Outlet Location | CENTRALLY LOCATED IN END SECTION OF BODY OPPOSITE INLET |
| Baffle Quantity | 1 |
| Body Shape | ROUND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2990-00-603-4791 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-603-4791 has 6 cross-referenced part numbers: 7258 (Cummins Filtration Inc.), ABT7258 (Brighton Cromwell Llc), T-7258 (Cummins Filtration Inc.), 1021B133 (Szemco Inc), ABT7258 (Ar Bee Corp) and 1 more.
There are 8 known substitutes for 2990-00-603-4791: 2920-00-184-7515, 5136-00-197-9557, 5930-00-958-2982 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-7258: Inlet Thread Series Designator: NPT SINGLE INLET; Outlet Thread Series Designator: NPT FIRST OUTLET; Surface Treatment: ALUMINUM; Overall Diameter: 5.625 INCHES NOMINAL IN. 25 total characteristics are documented in the Federal Logistics Information System.