The Exhaust System,engine, cataloged under National Stock Number 2990-01-406-2290, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2990-01-406-2290 |
| Primary Part Number | 40-0039529 |
| Item Name | Exhaust System,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| General Characteristics Item Description | PIPE EXHAUST |
| Surface Treatment | PRIMER |
| Material | STEEL |
| 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 |
|---|---|
| 40-0039529 PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 611520 | Wiggins Lift Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 40-0039529 | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 2990-01-406-2290 is a Exhaust System,engine, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-406-2290 has 2 manufacturer part numbers on file: 40-0039529 (Brinkley Technology Group Llc Dba Hercules Manufacturing), 611520 (Wiggins Lift Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-416-7414. Verify interchangeability with system specifications before substitution.
Key specifications for 40-0039529: General Characteristics Item Description: PIPE EXHAUST; Surface Treatment: PRIMER; Material: STEEL. 3 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.