The Exhaust System,engine, cataloged under National Stock Number 2990-01-591-2450, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Superior Diesel, Inc.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-591-2450 |
| Primary Part Number | DR2010 |
| Item Name | Exhaust System,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Superior Diesel, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| DR2010 PRIMARY | Superior Diesel, Inc. (USA) |
| Reference | Meaning |
|---|---|
| DR2010 | 5/9 Secondary reference Ison Equipment Co Inc Superior Diesel Div |
NSN 2990-01-591-2450 is a Exhaust System,engine, manufactured by Superior Diesel, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-591-2450 has 1 manufacturer part number on file: DR2010 (Superior Diesel, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6650-01-668-4320. Verify interchangeability with system specifications before substitution.
Key specifications for DR2010: Special Features: EXHAUST ASSY, VERTICAL, CS250T, CONSIST OF MUFFER, CLAMP, GASKET, AND RAIN CAP; PUMP CENTRIFUGAL, 400 GPM, COOLING GROUP; Part Name Assigned by Controlling Agency: MUFFLER; End Item Identification: 403720A, SATC A. 0 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.