The Muffler,exhaust, cataloged under National Stock Number 2990-00-447-2178, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2990-00-447-2178 |
| Primary Part Number | T-4380 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | CANCELLED |
| Tube Quantity | 3 |
| Coolant Type | AIR |
| Outlet Integral Tail Pipe Length | 1.750 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Design Type | DRY |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Surface Treatment | PAINT HEAT RESISTANT |
| Muffler Design | MULTIPASS |
| Overall Diameter | 4.875 INCHES NOMINAL IN |
| Inlet Thread Size | 1-1/4-11-1/2 SINGLE INLET |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Inlet Projection Length | 1.750 INCHES NOMINAL SINGLE INLET IN |
| Inlet Connection Type | THREADED SINGLE INLET |
| Body Shape | ROUND |
| Inlet Location | OFFSET LOCATED ON END OF BODY |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 2990-00-447-2178 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: cancelled.
NSN 2990-00-447-2178 has 5 cross-referenced part numbers: T-4380 (Cummins Filtration Inc.), ABT4380 (Brighton Cromwell Llc), 4380 (Cummins Filtration Inc.), A211483 (Joy Global Underground Mining Llc), ABT4380 (Ar Bee Corp).
There are 10 known substitutes for 2990-00-447-2178: 5905-00-061-2089, 6515-00-184-0509, 6140-00-397-2665 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-4380: Tube Quantity: 3; Coolant Type: AIR; Overall Length: 17.875 INCHES NOMINAL IN; Outlet Integral Tail Pipe Length: 1.750 INCHES NOMINAL FIRST OUTLET IN. 18 total characteristics are documented in the Federal Logistics Information System.
NSN 2990-00-447-2178 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.