The Muffler,exhaust, cataloged under National Stock Number 2990-00-266-9728, 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 3 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 | 2990-00-266-9728 |
| Primary Part Number | T-1956 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Outlet Outside Diameter | 2.505 INCHES MAXIMUM FIRST OUTLET IN |
| Inlet Connection Type | THREADED SINGLE INLET |
| Design Type | DRY |
| Inlet Projection Length | 0.750 INCHES NOMINAL SINGLE INLET IN |
| Surface Treatment | CHROMATE ZINC |
| Outlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Coolant Type | AIR |
| Operating Position | HORIZONTAL |
| Outlet Inside Diameter | 2.433 INCHES MAXIMUM FIRST OUTLET IN |
| Muffler Design | BAFFLE |
| Overall Diameter | 4.562 INCHES NOMINAL IN |
| Inlet Thread Size | 1/2-14 SINGLE INLET |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Inlet Location | 1-13/16 IN. C TO C FROM HORIZONTAL CENTER LINE IN |
| Baffle Quantity | 1 |
| Body Shape | ROUND |
| Outlet Projection Length | 0.109 INCHES NOMINAL FIRST OUTLET IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1956 | Cummins Filtration Inc. (USA) |
| 105874 | Textron Inc Jacobsen Div (USA) |
| SCC33504 | Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA) |
| T-1956 PRIMARY | Cummins Filtration Inc. (USA) |
| 05874 | Textron Inc Jacobsen Div (USA) |
NSN 2990-00-266-9728 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-266-9728 has 5 cross-referenced part numbers: 1956 (Cummins Filtration Inc.), 105874 (Textron Inc Jacobsen Div), SCC33504 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), T-1956 (Cummins Filtration Inc.), 05874 (Textron Inc Jacobsen Div).
There are 12 known substitutes for 2990-00-266-9728: 5961-00-079-5766, 5330-00-154-1116, 5985-00-283-5181 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-1956: Inlet Thread Location: EXTERNAL SINGLE INLET; Outlet Outside Diameter: 2.505 INCHES MAXIMUM FIRST OUTLET IN; Inlet Connection Type: THREADED SINGLE INLET; Design Type: DRY. 22 total characteristics are documented in the Federal Logistics Information System.