The Muffler,exhaust, cataloged under National Stock Number 2990-00-293-6608, 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 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-293-6608 |
| Primary Part Number | 2638-N |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Overall Diameter | 3.250 INCHES NOMINAL IN |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Coolant Type | AIR |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Muffler Design | STRAIGHT THROUGH |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Outlet Connection Type | THREADED FIRST OUTLET |
| Outlet Thread Direction | RIGHT-HAND FIRST OUTLET |
| Outlet Projection Length | 2.125 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Connection Type | THREADED SINGLE INLET |
| Outlet Location | CENTRALLY IN END SECTION OF BODY |
| Outlet Thread Series Designator | NPT FIRST OUTLET |
| Inlet Location | CENTRALLY IN END SECTION OF BODY |
| Surface Treatment | PLASTIC POLYPROPYLENE |
| Operating Position | UNIVERSAL |
| Inlet Thread Size | 1-11-1/2 SINGLE INLET |
| Design Type | DRY |
| Body Shape | ROUND |
| Outlet Thread Size | 1-11-1/2 FIRST OUTLET |
| Inlet Projection Length | 1.250 INCHES NOMINAL SINGLE INLET IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2990-00-293-6608 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-293-6608 has 6 cross-referenced part numbers: ABT2638 (Ar Bee Corp), 2638 (Cummins Filtration Inc.), 291519 (Briggs and Stratton Corp), 292690 (Briggs and Stratton Corp), 2638-N (Cummins Filtration Inc.) and 1 more.
There are 10 known substitutes for 2990-00-293-6608: 2010-00-213-0511, 5925-00-259-2098, 5315-00-275-4764 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2638-N: Overall Length: 11.313 INCHES NOMINAL IN; Overall Diameter: 3.250 INCHES NOMINAL IN; Inlet Thread Series Designator: NPT SINGLE INLET; Coolant Type: AIR. 23 total characteristics are documented in the Federal Logistics Information System.