The Muffler,exhaust, cataloged under National Stock Number 2990-00-374-8564, 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 22 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 | 2990-00-374-8564 |
| Primary Part Number | T-3438 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Inlet Location | LOCATED PERPENDICULAR THROUGH SIDES OF BODY,2.750 IN. FROM CENTER OF INLET TO END OF BODY IN |
| Outlet Projection Length | 3.375 INCHES NOMINAL FIRST OUTLET IN |
| Thread Location | EXTERNAL FIRST OUTLET |
| Inlet Projection Length | 5.500 INCHES NOMINAL SINGLE INLET IN |
| Tube Quantity | 2 |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Baffle Quantity | 3 |
| Inlet Inside Diameter | 2.405 INCHES MINIMUM AND 2.425 INCHES MAXIMUM SINGLE INLET IN |
| Outlet Thread Size | 2-11-1/2 FIRST OUTLET |
| Outlet Thread Direction | RIGHT-HAND FIRST OUTLET |
| Outlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Outlet Thread Series Designator | NPT FIRST OUTLET |
| Coolant Type | AIR |
| Surface Treatment | ALUMINUM |
| Inlet Outside Diameter | 2.465 INCHES MINIMUM AND 2.485 INCHES MAXIMUM SINGLE INLET IN |
| Body Shape | ROUND |
| Operating Position | HORIZONTAL |
| Overall Diameter | 7.000 INCHES NOMINAL IN |
| Design Type | DRY |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Outlet Connection Type | THREADED FIRST OUTLET |
| Muffler Design | BAFFLE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2990-00-374-8564 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-374-8564 has 5 cross-referenced part numbers: ABT3438 (Ar Bee Corp), T-3438 (Cummins Filtration Inc.), ABT3438 (Brighton Cromwell Llc), 9284 (John Reiner & Co. Inc.), 3438 (Cummins Filtration Inc.).
There are 12 known substitutes for 2990-00-374-8564: 2825-00-146-0129, 5360-00-200-7982, 5120-00-242-3268 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-3438: Inlet Location: LOCATED PERPENDICULAR THROUGH SIDES OF BODY,2.750 IN. FROM CENTER OF INLET TO END OF BODY IN; Outlet Projection Length: 3.375 INCHES NOMINAL FIRST OUTLET IN; Thread Location: EXTERNAL FIRST OUTLET; Inlet Projection Length: 5.500 INCHES NOMINAL SINGLE INLET IN. 24 total characteristics are documented in the Federal Logistics Information System.