The Muffler,exhaust, cataloged under National Stock Number 2990-00-805-0830, 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 24 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2990-00-805-0830 |
| Primary Part Number | T-5646 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | CANCELLED |
| Coolant Type | AIR |
| Inlet Thread Size | 1-1/4-11-1/2 SINGLE INLET |
| Overall Diameter | 4.625 INCHES NOMINAL IN |
| Body Shape | ROUND |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Thread Direction | RIGHT-HAND FIRST OUTLET |
| FSC Application Data | ENGINE EXHAUST SYSTEM,NONAIRCRAFT |
| Design Type | DRY |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Outlet Projection Length | 0.813 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Location | 1-3/8 IN. C TO C FROM HORIZONTAL CENTER LINE IN |
| Baffle Quantity | 1 |
| Outlet Connection Type | THREADED FIRST OUTLET |
| Operating Position | HORIZONTAL |
| Outlet Location | 1 IN. C TO C FROM HORIZONTAL CENTER LINE IN |
| Inlet Projection Length | 0.813 INCHES NOMINAL SINGLE INLET IN |
| Inlet Connection Type | THREADED SINGLE INLET |
| Tube Quantity | 3 |
| Outlet Thread Size | 1-1/4-11-1/2 FIRST OUTLET |
| Thread Location | EXTERNAL FIRST OUTLET |
| Outlet Thread Series Designator | NPT FIRST OUTLET |
| Muffler Design | BAFFLE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 2990-00-805-0830 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: cancelled.
NSN 2990-00-805-0830 has 5 cross-referenced part numbers: 3R25727 (Ingersoll Rand Co), T-5646 (Cummins Filtration Inc.), ABT5646 (Ar Bee Corp), 5646 (Cummins Filtration Inc.), ABT5646 (Brighton Cromwell Llc).
There are 7 known substitutes for 2990-00-805-0830: 4810-00-237-3669, 6625-00-256-7847, 1620-01-143-3505 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-5646: Coolant Type: AIR; Inlet Thread Size: 1-1/4-11-1/2 SINGLE INLET; Overall Diameter: 4.625 INCHES NOMINAL IN; Body Shape: ROUND. 25 total characteristics are documented in the Federal Logistics Information System.
NSN 2990-00-805-0830 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.