The Muffler,exhaust, cataloged under National Stock Number 2990-00-640-8235, 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 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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2990-00-640-8235 |
| Primary Part Number | T-1734 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | CANCELLED |
| Operating Position | VERTICAL |
| Body Shape | ROUND |
| Outlet Projection Length | 1.781 INCHES NOMINAL FIRST OUTLET IN |
| Coolant Type | AIR |
| Design Type | DRY |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Outlet Thread Size | 1-1/4-12 FIRST OUTLET |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Thread Size | 1-1/4-12 SINGLE INLET |
| Overall Diameter | 4.500 INCHES NOMINAL IN |
| Thread Location | EXTERNAL FIRST OUTLET |
| Outlet Thread Direction | RIGHT-HAND FIRST OUTLET |
| Muffler Design | DIRECTIONAL VANE W/INTEGRAL SPARK ARRESTOR |
| Inlet Location | 9/32 IN. C TO C FROM HORIZONTAL CENTER LINE IN |
| Inlet Projection Length | 1.781 INCHES NOMINAL SINGLE INLET IN |
| Outlet Connection Type | THREADED FIRST OUTLET |
| Inlet Connection Type | THREADED SINGLE INLET |
| FSC Application Data | MISCELLANEOUS ENGINE ACCESSORY NONAIRCRAFT |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Outlet Location | 1.000 IN. C TO C FROM HORIZONTAL CENTER LINE IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 2990-00-640-8235 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: cancelled.
NSN 2990-00-640-8235 has 5 cross-referenced part numbers: ABT1734 (Brighton Cromwell Llc), WD44 (Wisconsin Motors, Llc), T-1734 (Cummins Filtration Inc.), 1734 (Cummins Filtration Inc.), ABT1734 (Ar Bee Corp).
There are 12 known substitutes for 2990-00-640-8235: 5325-00-276-4204, 5905-00-450-3330, 5325-00-489-3078 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-1734: Operating Position: VERTICAL; Body Shape: ROUND; Outlet Projection Length: 1.781 INCHES NOMINAL FIRST OUTLET IN; Coolant Type: AIR. 21 total characteristics are documented in the Federal Logistics Information System.
NSN 2990-00-640-8235 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.