The Muffler,exhaust, cataloged under National Stock Number 2990-00-377-4979, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is The Gorman-Rupp Company Div Gorman-Rupp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2990-00-377-4979 |
| Primary Part Number | 142 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | The Gorman-Rupp Company Div Gorman-Rupp |
| Status | CANCELLED |
| Overall Diameter | 4.500 INCHES NOMINAL IN |
| Design Type | DRY |
| Body Shape | ROUND |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Nonconnection Outlet Size | 0.125 IN. DIA IN |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Tube Quantity | 1 |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Nonconnection Outlet Location | LOCATED ON END |
| FSC Application Data | 1. EXHAUST AND MUFFLER GROUP,GASOLINE ENGINE,NONAIRCRAFT |
| Muffler Design | MULTIPASS |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Surface Treatment | PAINT |
| Inlet Connection Type | THREADED SINGLE INLET |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Nonconnection Outlet Type and Quantity | 88 PERFORATED |
| Coolant Type | AIR |
| Inlet Projection Length | 2.375 INCHES MINIMUM AND 2.500 INCHES MAXIMUM SINGLE INLET IN |
| Inlet Thread Size | 1-1/4- 11-1/2 SINGLE INLET |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ABT2516 | Ar Bee Corp (USA) |
| T-2541 | Cummins Filtration Inc. (USA) |
| T-2029 | Cummins Filtration Inc. (USA) |
| 142 PRIMARY | The Gorman-Rupp Company Div Gorman-Rupp (USA) |
| 2516 | Cummins Filtration Inc. (USA) |
| WD5 PRIMARY | Renk America Llc Div Renk America (USA) |
| T-2516 PRIMARY | Cummins Filtration Inc. (USA) |
| 142NC PRIMARY | The Gorman-Rupp Company Div Gorman-Rupp (USA) |
| WPP1696 | Siemens Water Technologies Corp. Div Wallace & Tiernan Products (USA) |
| WD34 PRIMARY | Renk America Llc Div Renk America (USA) |
| WD-34 PRIMARY | Wisconsin Motors, Llc (USA) |
NSN 2990-00-377-4979 is a Muffler,exhaust, manufactured by The Gorman-Rupp Company Div Gorman-Rupp, classified under FSC 2990 (No Item Name Available). Status: cancelled.
NSN 2990-00-377-4979 has 11 cross-referenced part numbers: ABT2516 (Ar Bee Corp), T-2541 (Cummins Filtration Inc.), T-2029 (Cummins Filtration Inc.), 142 (The Gorman-Rupp Company Div Gorman-Rupp), 2516 (Cummins Filtration Inc.) and 6 more.
There is 1 known substitute for 2990-00-377-4979: 4920-00-341-8493. Verify interchangeability with system specifications before substitution.
Key specifications for 142: Overall Diameter: 4.500 INCHES NOMINAL IN; Design Type: DRY; Body Shape: ROUND; Thread Direction: RIGHT-HAND SINGLE INLET. 20 total characteristics are documented in the Federal Logistics Information System.
NSN 2990-00-377-4979 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.