The Muffler,exhaust, cataloged under National Stock Number 2990-00-231-6437, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Donaldson Company, Inc.. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-231-6437 |
| Primary Part Number | MFM04-5047 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Inlet Inside Diameter | 2.520 INCHES NOMINAL SINGLE INLET IN |
| Surface Treatment | ALUMINUM |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Overall Diameter | 4.380 INCHES NOMINAL IN |
| Outlet Inside Diameter | 2.520 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Projection Length | 2.000 INCHES NOMINAL SINGLE INLET IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Operating Position | UNIVERSAL |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Coolant Type | AIR |
| Design Type | DRY |
| Body Shape | ROUND |
| Outlet Projection Length | 2.250 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Outlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 101328 | Scott Huber Essick a Co of Figgie International Inc (USA) |
| MFM04-5047 PRIMARY | Donaldson Company, Inc. (USA) |
NSN 2990-00-231-6437 is a Muffler,exhaust, manufactured by Donaldson Company, Inc., classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-231-6437 has 2 cross-referenced part numbers: 101328 (Scott Huber Essick a Co of Figgie International Inc), MFM04-5047 (Donaldson Company, Inc.).
There are 6 known substitutes for 2990-00-231-6437: 2915-00-101-8559, 5841-00-411-0547, 6130-00-487-3150 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for MFM04-5047: Inlet Inside Diameter: 2.520 INCHES NOMINAL SINGLE INLET IN; Surface Treatment: ALUMINUM; Inlet Connection Type: UNTHREADED SINGLE INLET; Overall Diameter: 4.380 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.