The Muffler,exhaust, cataloged under National Stock Number 2990-00-142-0761, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Walker Mfg Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 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 | 2990-00-142-0761 |
| Primary Part Number | 22810 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Walker Mfg Co |
| Status | CANCELLED |
| Outlet Location | CENTRALLY LOCATED IN END OF MUFFLER |
| Surface Treatment | ALUMINUM |
| Outlet Projection Length | 4.188 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Outside Diameter | 4.0412 INCHES NOMINAL SINGLE INLET IN |
| Muffler Design | STRAIGHT THROUGH |
| Inlet Location | CENTRALLY LOCATED IN END OF MUFFLER |
| Overall Diameter | 7.000 INCHES NOMINAL IN |
| Outlet Inside Diameter | 4.031 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Inside Diameter | 4.03125 INCHES NOMINAL SINGLE INLET IN |
| Operating Position | VERTICAL OR HORIZONTAL |
| Tube Quantity | 4 |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Design Type | DRY |
| Inlet Projection Length | 4.188 INCHES NOMINAL SINGLE INLET IN |
| FSC Application Data | ENGINE,FIRE AND CRASH TRUCK |
| Baffle Quantity | 3 |
| Outlet Outside Diameter | 4.0412 INCHES NOMINAL FIRST OUTLET IN |
| Coolant Type | AIR |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2265 | Maremont Corp (USA) |
| 987178R91 | Navistar Intl Corp Truck Br Ohio Plant (USA) |
| DE5 | Hme, Inc. Dba Hme Ahrens-Fox (USA) |
| 22810 PRIMARY | Walker Mfg Co (USA) |
| MUM07-0011 PRIMARY | Donaldson Company, Inc. (USA) |
| 9227H15D2 | Liquid Air Corp Industrial Gases Div (USA) |
| 190-9147 PRIMARY | Stemco Inc Sub of Coltec Industries Inc (USA) |
| M70011 | Donaldson Company, Inc. (USA) |
| DE5 | Maremont Corp (USA) |
NSN 2990-00-142-0761 is a Muffler,exhaust, manufactured by Walker Mfg Co, classified under FSC 2990 (No Item Name Available). Status: cancelled.
NSN 2990-00-142-0761 has 9 cross-referenced part numbers: 2265 (Maremont Corp), 987178R91 (Navistar Intl Corp Truck Br Ohio Plant), DE5 (Hme, Inc. Dba Hme Ahrens-Fox), 22810 (Walker Mfg Co), MUM07-0011 (Donaldson Company, Inc.) and 4 more.
There are 12 known substitutes for 2990-00-142-0761: 5915-00-007-8162, 5930-00-057-9921, 6115-00-118-1264 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 22810: Outlet Location: CENTRALLY LOCATED IN END OF MUFFLER; Surface Treatment: ALUMINUM; Outlet Projection Length: 4.188 INCHES NOMINAL FIRST OUTLET IN; Inlet Outside Diameter: 4.0412 INCHES NOMINAL SINGLE INLET IN. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 2990-00-142-0761 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.