NSN 2940-00-139-4290, 2940001394290
VALVE,AIR INJECTION

Federal Supply Classification: FSC 2940 - Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft
National Item Identification Number: NIIN 001394290
Codification Country: United States
Item Name Code: INC 77777
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: Request Qualified Suppliers: Currently qualifying suppliers

Manufacture or supply this part?
Join our growing community of certified suppliers.

Let Us Know

CALL ABOUT NSN 2940-00-139-4290

Our client representatives are standing by to help fulfill your request.

+1-321-773-5710

REQUEST QUOTE for 2940-00-139-4290

Have a list that needs to be quoted? Upload it here.

Upload a List

DLMS^® Summary

National Stock Number 2940-00-139-4290

National Stock Number (NSN) 2940-00-139-4290, or NIIN 001394290, (valve,air injection) was assigned August 18, 1971 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 2 suppliers are listed as Active suppliers 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) 77777. 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 2940001394290 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) STEEL,3.125 IN. O/A LENGTH,2.750 IN. W,2.000IN. THK,3 PORTS,TOP @PORTINTERNALLY THD,1/2-14 NPTTHD,TWO BOTTOM PORTS UNTHD,0.750 IN. ID HOSE ACCOMMODATED ON BOTTOM PORTS,UPWARD @DIRECTION OF AIR FLOW,CHECK @VALVE IN BODY