The Muffler,exhaust, cataloged under National Stock Number 2990-00-328-8953, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-328-8953 |
| Primary Part Number | T-3499 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Overall Diameter | 8.125 INCHES NOMINAL IN |
| Outlet Inside Diameter | 2.505 INCHES MINIMUM AND 2.525 INCHES MAXIMUM FIRST OUTLET IN |
| Body Shape | ROUND |
| Muffler Design | MULTIPASS W/INTEGRAL SPARK ARRESTOR |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Tube Quantity | 2 |
| Coolant Type | AIR |
| Operating Position | HORIZONTAL |
| Design Type | DRY |
| Inlet Outside Diameter | 2.125 INCHES MINIMUM AND 2.145 INCHES MAXIMUM SINGLE INLET IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Inlet Projection Length | 2.125 INCHES NOMINAL SINGLE INLET IN |
| Inlet Inside Diameter | 2.005 INCHES MINIMUM AND 2.025 INCHES MAXIMUM SINGLE INLET IN |
| Outlet Outside Diameter | 2.625 INCHES MINIMUM AND 2.645 INCHES MAXIMUM FIRST OUTLET IN |
| FSC Application Data | 1. ENGINE,GASOLINE,NONAIRCRAFT |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 2.125 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Location | CENTRALLY LOCATED ON SIDE 2-1/4 IN. FROM END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2990-00-328-8953 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-328-8953 has 3 cross-referenced part numbers: 3499 (Cummins Filtration Inc.), T-3499 (Cummins Filtration Inc.), ABT3499 (Ar Bee Corp).
There are 6 known substitutes for 2990-00-328-8953: 6320-00-222-9453, 6320-00-222-9457, 5330-00-422-2521 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-3499: Overall Diameter: 8.125 INCHES NOMINAL IN; Outlet Inside Diameter: 2.505 INCHES MINIMUM AND 2.525 INCHES MAXIMUM FIRST OUTLET IN; Body Shape: ROUND; Muffler Design: MULTIPASS W/INTEGRAL SPARK ARRESTOR. 20 total characteristics are documented in the Federal Logistics Information System.