NSN 5120-00-488-0440, 5120004880440
WRENCH,OPEN END

Federal Supply Classification: FSC 5120 - Hand Tools, Nonedged, Nonpowered
National Item Identification Number: NIIN 004880440
Codification Country: United States
Item Name Code: INC 17182
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: We have 2 qualified suppliers

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DLMS^® Summary

National Stock Number 5120-00-488-0440

National Stock Number (NSN) 5120-00-488-0440, or NIIN 004880440, (wrench,open end) was assigned June 27, 1974 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. ISO Group has several sources of supply for this NSN.

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

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 1991, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 17182. [A NONADJUSTABLE WRENCH HAVING AN OPEN END WRENCHING FEATURE ON ONE OR BOTH ENDS. EXCLUDES WRENCH, OPEN END BOX; WRENCH, LINEMAN'S; AND WRENCH, BOX AND OPEN END, COMBINATION.]. 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 5120004880440 does not contain precious metals.

This NSN is associated to Schedule B 8204110030: open-end, box and combination open-end and box wrenches, base metal. The Schedule B End Use is listed as photo, service industry machinery.

This information was last updated on Aug 01, 2025.

Technical Characteristics

WRENCHING SURFACE SIZE: (AJBR) 0.380 INCHES MINIMUM AND 0.388 INCHES MAXIMUM BOTH ENDS
MATERIAL: (MATT) ALUMINUM ALLOY OVERALL
FEATURES PROVIDED: (CBBL) NONSPARKING AND NONMAGNETIC
LARGE END HEAD ANGLE: (CWGT) 0.0 DEGREES NOMINAL
LARGE END HEAD THICKNESS: (AJAU) 0.125 INCHES NOMINAL
OVERALL LENGTH: (ABHP) 5.000 INCHES NOMINAL
MATERIAL: (MATT) ALUMINUM ALLOY OR COPPER ALLOY OVERALL
SMALL END HEAD ANGLE: (CTHK) 38.0 DEGREES NOMINAL
SMALL END HEAD THICKNESS: (AJAV) 0.125 INCHES NOMINAL
STYLE DESIGNATOR: (STYL) THIN DOUBLE HEAD
WRENCHING SURFACE SHAPE: (CRWY) HEXAGON BOTH ENDS INTERNAL
WRENCHING SURFACE SIZE: (AJBR) 0.375 INCHES NOMINAL BOTH ENDS
STYLE DESIGNATOR: (STYL) ERR-090
WRENCHING SURFACE SHAPE: (CRWY) UNABLE TO DECODE
DRIVE END SHAPE: (CTCT) HEXAGON BOTH ENDS INTERNALHEXAGON BOTH ENDS INTERNAL
WRENCHING SURFACE SIZE: (AJBR) UNABLE TO DECODE
SPECIAL FEATURES: (FEAT) IN ACCORDANCE WITH THE DEPARTMENT OF THE NAVY, NAVAL ORDNANCE SYSTEMS COMMAND DRAWING NUMBER 300435, DATED 8 DEC 71, REVISION B1