The Muffler,exhaust, cataloged under National Stock Number 2990-01-080-6512, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Donaldson Company, Inc.. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-080-6512 |
| Primary Part Number | MOM12-0225 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| Inlet Location | LOCATED LOWER RIGHT HAND SIDE FLAT BASE |
| Coolant Type | AIR |
| Design Type | DRY |
| Outlet Inside Diameter | 5.025 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Projection Length | 3.250 INCHES NOMINAL SINGLE INLET IN |
| Baffle Quantity | 2 |
| Muffler Design | STRAIGHT THROUGH W/BAFFLE |
| Tube Quantity | 2 |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Body Shape | OVAL |
| Outlet Integral Tail Pipe Length | 2.000 INCHES NOMINAL FIRST OUTLET IN |
| Surface Treatment | ALUMINUM ALLOY |
| Inlet Inside Diameter | 5.025 INCHES NOMINAL SINGLE INLET IN |
| Inlet Integral Manifold Exhaust Pipe Length | 2.500 INCHES NOMINAL SINGLE INLET IN |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 3.250 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Location | LOCATED UPPER LEFT HAND SIDE FLAT BASE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| EE100601 | Oshkosh Defense Llc (USA) |
| MOM12-0225 PRIMARY | Donaldson Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| EE100601 | 5/9 Secondary reference Oshkosh Corp |
NSN 2990-01-080-6512 is a Muffler,exhaust, manufactured by Donaldson Company, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-080-6512 has 2 manufacturer part numbers on file: EE100601 (Oshkosh Defense Llc), MOM12-0225 (Donaldson Company, Inc.).
Key specifications for MOM12-0225: Operating Position: HORIZONTAL; Overall Height: 15.000 INCHES NOMINAL IN; Inlet Location: LOCATED LOWER RIGHT HAND SIDE FLAT BASE; Coolant Type: AIR. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.