The Muffler,exhaust, cataloged under National Stock Number 2990-00-904-4956, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Merit Industries Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 15 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 | 2990-00-904-4956 |
| Primary Part Number | 847 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Merit Industries Inc |
| Status | ACTIVE |
| Tube Quantity | 1 |
| Muffler Design | STRAIGHT THROUGH |
| Outlet Inside Diameter | 1.750 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Overall Diameter | 5.000 INCHES NOMINAL IN |
| Body Shape | ROUND |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Inside Diameter | 2.000 INCHES NOMINAL SINGLE INLET IN |
| Material | ASBESTOS INSULATION |
| Outlet Projection Length | 2.000 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Projection Length | 2.000 INCHES NOMINAL SINGLE INLET IN |
| Inlet Location | CENTRALLY LOCATED ON END OF BODY |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Surface Treatment | ALUMINUM OR ZINC |
| Design Type | JACKETED |
| Operating Position | HORIZONTAL |
| Outlet Location | CENTRALLY LOCATED ON END OF BODY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 3763 | De Koven Mfg Co (USA) |
| 5753 | Walker Mfg Co (USA) |
| 091-2506865 | Brighton Cromwell Llc (USA) |
| 091-2506865 | Ar Bee Corp (USA) |
| 2537 | Ap Parts Co Industrial Sales Div (USA) |
| 847 PRIMARY | Merit Industries Inc (USA) |
| D056 PRIMARY | Maremont Corp (USA) |
| 1101 | Haviland Arnold Co (USA) |
| 41J | International Parts Corp Div of Midas-International Corp (USA) |
| 21495 PRIMARY | Walker Mfg Co (USA) |
| 2537 | Federal-Mogul Corp Government Sales Dept (USA) |
| 735 | Ap Parts Co Youngstown Div (USA) |
| 1999 PRIMARY | Arvin Industries Inc (USA) |
| 2506865 | Chrysler Realty Company Llc Dba Daimler Chrysler (USA) |
| 2002 | Harvard Industries (USA) |
| 569 | Mahle Aftermarket Inc. Dba Ae Clevite Inc (USA) |
NSN 2990-00-904-4956 is a Muffler,exhaust, manufactured by Merit Industries Inc, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-904-4956 has 16 cross-referenced part numbers: 3763 (De Koven Mfg Co), 5753 (Walker Mfg Co), 091-2506865 (Brighton Cromwell Llc), 091-2506865 (Ar Bee Corp), 2537 (Ap Parts Co Industrial Sales Div) and 11 more.
There are 12 known substitutes for 2990-00-904-4956: 5935-00-009-1166, 3455-00-023-4280, 2530-00-073-2878 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 847: Tube Quantity: 1; Muffler Design: STRAIGHT THROUGH; Outlet Inside Diameter: 1.750 INCHES NOMINAL FIRST OUTLET IN; Inlet Connection Type: UNTHREADED SINGLE INLET. 18 total characteristics are documented in the Federal Logistics Information System.