The Muffler,exhaust, cataloged under National Stock Number 2990-00-275-6769, 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 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-275-6769 |
| Primary Part Number | T-8578 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Inlet Thread Size | 1-1/4-11-1/2 SINGLE INLET |
| Outlet Thread Direction | RIGHT-HAND FIRST OUTLET |
| Muffler Design | STRAIGHT THROUGH |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Location | LOCATED CENTER OF END OF BODY |
| Coolant Type | AIR |
| Outlet Connection Type | THREADED FIRST OUTLET |
| Outlet Projection Length | 2.000 INCHES NOMINAL FIRST OUTLET IN |
| Surface Treatment | ALUMINUM ALLOY |
| Overall Diameter | 4.625 INCHES NOMINAL IN |
| Thread Location | EXTERNAL FIRST OUTLET |
| Body Shape | ROUND |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Tube Quantity | 1 |
| Inlet Projection Length | 2.000 INCHES NOMINAL SINGLE INLET IN |
| Inlet Connection Type | THREADED SINGLE INLET |
| Outlet Location | LOCATED CENTER OF END OF BODY |
| Design Type | DRY |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Operating Position | UNIVERSAL |
| Outlet Thread Size | 1-1/4-11-1/2 FIRST OUTLET |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Outlet Thread Series Designator | NPT FIRST OUTLET |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2990-00-275-6769 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-275-6769 has 4 cross-referenced part numbers: T-8578 (Cummins Filtration Inc.), T8578-A (Cummins Filtration Inc.), ABT8578 (Ar Bee Corp), 8578 (Cummins Filtration Inc.).
There are 3 known substitutes for 2990-00-275-6769: 5935-00-823-0303, 3030-01-183-5940, 8030-01-518-5540. Verify interchangeability with system specifications before substitution.
Key specifications for T-8578: Overall Length: 10.562 INCHES NOMINAL IN; Inlet Thread Size: 1-1/4-11-1/2 SINGLE INLET; Outlet Thread Direction: RIGHT-HAND FIRST OUTLET; Muffler Design: STRAIGHT THROUGH. 24 total characteristics are documented in the Federal Logistics Information System.