The Sensor,exhaust Gas,oxygen,emissi, cataloged under National Stock Number 2990-01-474-7106, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is John Deere Construction & Forestry Company. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-474-7106 |
| Primary Part Number | 251997994100 |
| Item Name | Sensor,exhaust Gas,oxygen,emissi |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | John Deere Construction & Forestry Company |
| 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 |
|---|---|
| 251997994100 PRIMARY | John Deere Construction & Forestry Company (USA) |
| 251997994100 | Espar Products Inc (CAN) |
| 3HA451 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 3HA451 | 5/9 Secondary reference Oshkosh Corp |
| 251997994100 | 3/9 Design control — primary reference John Deere Construction & Forestry Company Div Direct Governmental Sales |
NSN 2990-01-474-7106 is a Sensor,exhaust Gas,oxygen,emissi, manufactured by John Deere Construction & Forestry Company, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-474-7106 has 3 manufacturer part numbers on file: 251997994100 (John Deere Construction & Forestry Company), 251997994100 (Espar Products Inc), 3HA451 (Oshkosh Defense Llc).
Key specifications for 251997994100: End Item Identification: CONTRACTOR LOGISTICS LIFETIME SUPPORT (CRLS), HYDRAULIC EXCAVTOR TYPE 1 (HYEX) (MODEL 230 LCR HX1), NSN 3805-01-463-0804, TM5-3805-280-24-P; 2320-01-097-0260 HEMTT (HEAVY EXPANDED MOBILITY TACTICAL TRUCK); 2320-01-304-2277 AND 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM). 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.