The Muffler,exhaust, cataloged under National Stock Number 2990-00-838-9303, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-838-9303 |
| Primary Part Number | T-7757 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Tube Quantity | 3 |
| Overall Diameter | 5.625 INCHES NOMINAL IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Body Shape | ROUND |
| Coolant Type | AIR |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Design Type | DRY |
| Outlet Projection Length | 2.500 INCHES NOMINAL FIRST OUTLET IN |
| Muffler Design | MULTIPASS |
| Outlet Location | OFFSET IN END SECTION OF BODY,SAME END AS INLET |
| Inlet Projection Length | 6.438 INCHES NOMINAL SINGLE INLET IN |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Outside Diameter | 1.375 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Location | ON SIDE 1.500 IN. CENTERLINE OF INLET TO END SECTION OF BODY IN |
| Inlet Inside Diameter | 1.640 INCHES NOMINAL SINGLE INLET IN |
| Surface Treatment | PAINT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2990-00-838-9303 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-838-9303 has 5 cross-referenced part numbers: ABT7757 (Brighton Cromwell Llc), 23681 (Tennant Company), 7757 (Cummins Filtration Inc.), ABT7757 (Ar Bee Corp), T-7757 (Cummins Filtration Inc.).
There are 12 known substitutes for 2990-00-838-9303: 5960-00-061-2595, 5330-00-361-7051, 1650-00-390-4033 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-7757: Tube Quantity: 3; Overall Diameter: 5.625 INCHES NOMINAL IN; Outlet Connection Type: UNTHREADED FIRST OUTLET; Body Shape: ROUND. 18 total characteristics are documented in the Federal Logistics Information System.