The Sensor,exhaust Gas,oxygen,emissi, cataloged under National Stock Number 2990-01-574-9213, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is General Motors Llc Dba General Motors Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-574-9213 |
| Primary Part Number | 12609457 |
| Item Name | Sensor,exhaust Gas,oxygen,emissi |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| 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 |
|---|---|
| 12609457 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| TC03-923 PG 3-227 IT 4 | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 12609457 | 5/9 Secondary reference General Motors Corp |
| TC03-923 PG 3-277 IT 4 | 5/9 Secondary reference General Motors Corp |
NSN 2990-01-574-9213 is a Sensor,exhaust Gas,oxygen,emissi, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-574-9213 has 2 manufacturer part numbers on file: 12609457 (General Motors Llc Dba General Motors Llc), TC03-923 PG 3-227 IT 4 (General Motors Llc Dba General Motors Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-728-8132, 5340-01-729-0246. Verify interchangeability with system specifications before substitution.
Key specifications for 12609457: Part Name Assigned by Controlling Agency: SENSOR, OXYGEN POS3; End Item Identification: FUEL GROUP. 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.