The Exhaust System,engine, cataloged under National Stock Number 2990-01-640-8500, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Nelson Global Products, Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-640-8500 |
| Primary Part Number | 6043803 |
| Item Name | Exhaust System,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Nelson Global Products, Inc. |
| Status | ACTIVE |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 6043803 | Am General Llc (USA) |
| 6043803 PRIMARY | Nelson Global Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 24433B | 5/9 Secondary reference Nelson Global Products, Inc. |
| 3043803 | 5/9 Secondary reference Am General Llc |
| 12563624 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 2990-01-640-8500 is a Exhaust System,engine, manufactured by Nelson Global Products, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-640-8500 has 2 manufacturer part numbers on file: 6043803 (Am General Llc), 6043803 (Nelson Global Products, Inc.).
Key specifications for 6043803: Overall Length: 49.60 INCHES NOMINAL IN; Special Features: NHA:12460078; Surface Treatment: PASSIVATE; Part Name Assigned by Controlling Agency: EXHAUST SYSTEM,MUFFLER. 2 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.