The Muffler,exhaust, cataloged under National Stock Number 2990-00-920-3779, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Volvo Construction Equipment North America, Llc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-920-3779 |
| Primary Part Number | HCF6635 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Volvo Construction Equipment North America, Llc |
| Status | ACTIVE |
| Baffle Quantity | 2 |
| Design Type | DRY |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Tube Quantity | 2 |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 1.375 INCHES NOMINAL FIRST OUTLET IN |
| Coolant Type | AIR |
| Body Shape | ROUND |
| Inlet Location | CENTERED ON END OF BODY |
| Inlet Projection Length | 1.375 INCHES NOMINAL SINGLE INLET IN |
| Overall Diameter | 5.000 INCHES NOMINAL IN |
| Muffler Design | BAFFLE |
| Inlet Inside Diameter | 2.515 INCHES NOMINAL SINGLE INLET IN |
| Outlet Location | CENTERED ON END OF BODY |
| Outlet Inside Diameter | 2.015 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| HCF6635 | Vme Americas Inc Sub of Vme Group N V (USA) |
| HCF6635 PRIMARY | Volvo Construction Equipment North America, Llc (USA) |
| ABT6470 | Ar Bee Corp (USA) |
| 6470N PRIMARY | Cummins Filtration Inc. (USA) |
| T-6470 | Cummins Filtration Inc. (USA) |
| 6470 | Cummins Filtration Inc. (USA) |
NSN 2990-00-920-3779 is a Muffler,exhaust, manufactured by Volvo Construction Equipment North America, Llc, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-920-3779 has 6 cross-referenced part numbers: HCF6635 (Vme Americas Inc Sub of Vme Group N V), HCF6635 (Volvo Construction Equipment North America, Llc), ABT6470 (Ar Bee Corp), 6470N (Cummins Filtration Inc.), T-6470 (Cummins Filtration Inc.) and 1 more.
There are 12 known substitutes for 2990-00-920-3779: 5940-00-050-2308, 5360-00-291-5442, 6140-00-538-9984 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for HCF6635: Baffle Quantity: 2; Design Type: DRY; Outlet Connection Type: UNTHREADED FIRST OUTLET; Tube Quantity: 2. 17 total characteristics are documented in the Federal Logistics Information System.