The Muffler,exhaust, cataloged under National Stock Number 2990-00-984-4973, 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 21 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2990-00-984-4973 |
| Primary Part Number | T-8912 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | CANCELLED |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Baffle Quantity | 1 |
| Muffler Design | STRAIGHT THROUGH |
| Tube Quantity | 1 |
| Operating Position | HORIZONTAL |
| Body Shape | ROUND |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Inlet Projection Length | 1.906 INCHES NOMINAL SINGLE INLET IN |
| Surface Treatment | ALUMINUM |
| Outlet Projection Length | 3.969 INCHES NOMINAL FIRST OUTLET IN |
| FSC Application Data | ENGINE EXHAUST SYSTEM,NONAIRCRAFT |
| Inlet Outside Diameter | 3.656 INCHES MINIMUM AND 3.688 INCHES MAXIMUM SINGLE INLET IN |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Overall Diameter | 8.500 INCHES NOMINAL IN |
| Outlet Inside Diameter | 3.500 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Outside Diameter | 3.625 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Inside Diameter | 3.531 INCHES MINIMUM AND 3.563 INCHES MAXIMUM SINGLE INLET IN |
| Design Type | DRY |
| Outlet Integral Tail Pipe Length | 16.313 INCHES MINIMUM AND 16.688 INCHES MAXIMUM FIRST OUTLET IN |
| Outlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ABT8912 | Ar Bee Corp (USA) |
| 404967 | Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co (USA) |
| 121054 | American Standard Inc Westinghouse Air Brake Co Div (USA) |
| 8912 | Cummins Filtration Inc. (USA) |
| T-8912 PRIMARY | Cummins Filtration Inc. (USA) |
NSN 2990-00-984-4973 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: cancelled.
NSN 2990-00-984-4973 has 5 cross-referenced part numbers: ABT8912 (Ar Bee Corp), 404967 (Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co), 121054 (American Standard Inc Westinghouse Air Brake Co Div), 8912 (Cummins Filtration Inc.), T-8912 (Cummins Filtration Inc.).
There are 12 known substitutes for 2990-00-984-4973: 5306-00-145-7089, 4510-00-245-9497, 4820-00-274-7389 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-8912: Inlet Connection Type: UNTHREADED SINGLE INLET; Baffle Quantity: 1; Muffler Design: STRAIGHT THROUGH; Tube Quantity: 1. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 2990-00-984-4973 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.