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NSN 2990-01-727-4273, 2990017274273
SENSOR,EXHAUST GAS,OXYGEN,EMISSI

Federal Supply Classification
FSC 2990 - Miscellaneous Engine Accessories, Nonaircraft
National Item Identification Number
NIIN 017274273
Codification Country
United States
Item Name Code
INC 39925
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 2990-01-727-4273

National Stock Number (NSN) 2990-01-727-4273, or NIIN 017274273, (sensor,exhaust gas,oxygen,emissi) was assigned March 4, 2025 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 39925. [A PLUG TYPE DEVICE WITH AN ELECTRONIC CONNECTOR OR CONTACT AT ONE END, A WRENCHING FACILITY IN THE MIDDLE. THE OPPOSITE END MAY BE THREADED WITH A PROBE DEVICE. IT IS DESIGNED TO CHANGE ITS OUTPUT VOLTAGE AS THE EXHAUST GAS TO OXYGEN CONTENT CHANGES WHEN COMPARED TO THE OXYGEN CONTENT OF THE ATMOSPHERE. A CONSTANTLY CHANGING VOLTAGE SIGNAL IS SENT TO THE ELECTRONIC CONTROL ASSEMBLY AND MICROPROCESSOR CONTROL UNIT FOR ANALYSIS AND ADJUSTMENT OF THE AIR/FUEL RATIO.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2990017274273 does not contain precious metals.

This NSN is associated to Schedule B 8409918000: parts for spark-ignition internal combustion piston engines, nesoi. The Schedule B End Use is listed as industrial engines. NAICS classification category 333618: other engine equipment manufacturing.

This information was last updated on .


Technical Characteristics

PART NAME ASSIGNED BY CONTROLLING AGENCY
(CXCY) S-121 LEL SENSOR HEAD ASSEMBLY
SPECIAL FEATURES
(FEAT) MATERIAL: 316 STAINLESS STEEL; LENGTH: 2.00INCH; 1ST END: 0.75-14NPT, 0.75INCH LONG; ACROSS FLATS 1.125 INCH; 2ND END: 1.25-20 2A, 0.50INCH LONG; DIAMETER: 1.25INCH;
VEHICLE DESIGN CONTROL ACTIVITY
(CYHX) 1MSW1

Manufacturer Part Numbers


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