NSN 5120-01-177-4940, 5120011774940
SOCKET ASSEMBLY

Federal Supply Classification: FSC 5120 - Hand Tools, Nonedged, Nonpowered
National Item Identification Number: NIIN 011774940
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: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 5120-01-177-4940

National Stock Number (NSN) 5120-01-177-4940, or NIIN 011774940, (socket assembly) was assigned April 26, 1984 in the Federal Logistics Information System (FLIS). NIIN 011774940 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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 2 suppliers. 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) 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 5120011774940 does not contain precious metals.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) Z55719,TMX4 1/4 IN. SQUARE INTERNAL,5/16 IN. SHANK,1/4 IN. DRIVE,4 IN. LG; 55719,STM8 1/4 IN. WRENCH SIZE,3/8 IN. HEX SOCKET END,7/16 IN. HANDLE END,2 IN. LG; 1/4 IN. HEX INTERNAL TO FIT 1032 HEX NUT SCREW,3/8 IN. LG; 6-3/8 IN. O/A LG
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) 55719,TMX4 1/4 IN. SQUARE INTERNAL,5/16 IN. SHANK,1/4 IN. DRIVE,4 IN. LG