PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

X720Wrench,box

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-00-357-8334 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-357-8334 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-357-8334. Primary manufacturer part number: X720.
Features
  • Wrench,box — FSC 5120
  • Outside Diameter: 3.375 INCHES MAXIMUM IN
  • Special Markings: WRENCH SIZE
  • Head Thickness: 1.344 INCHES MAXIMUM IN
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Offset Height: 1.875 INCHES MINIMUM IN
  • Style Designator: DOUBLE OFFSET STUB END
  • Surface Treatment: OXIDE OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-00-357-8334, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-357-8334
Primary Part NumberX720
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusCANCELLED
Outside Diameter3.375 INCHES MAXIMUM IN
Special MarkingsWRENCH SIZE
Head Thickness1.344 INCHES MAXIMUM IN
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Offset Height1.875 INCHES MINIMUM IN
Style DesignatorDOUBLE OFFSET STUB END
Surface TreatmentOXIDE OVERALL
MaterialSTEEL OVERALL
Wrenching Surface Size2.250 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5306-00-207-7447604361 INTERCHANGEABLE
Bolt,u
Clark Material Handling Company
5985-01-087-38513149035 INTERCHANGEABLE
Dummy Load,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
X720 PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
X720B Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
604361 Marine Travelift Inc (USA)
GGG-W-636 TY18CL2 General Services Administration Federal Supply Service (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
M0-72 Bosch Automotive Service Solutions Inc. (USA)
A-A-1340 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
5306-00-207-7447INTERCHANGEABLE
BOLT,U
604361
5985-01-087-3851INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
3149035

Frequently Asked Questions

What is NSN 5120-00-357-8334?

NSN 5120-00-357-8334 is a Wrench,box, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-357-8334?

NSN 5120-00-357-8334 has 7 cross-referenced part numbers: X720 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), X720B (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 604361 (Marine Travelift Inc), GGG-W-636 TY18CL2 (General Services Administration Federal Supply Service), GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC) and 2 more.

What NSN replaces 5120-00-357-8334?

There are 2 known substitutes for 5120-00-357-8334: 5306-00-207-7447, 5985-01-087-3851. Verify interchangeability with system specifications before substitution.

What are the specifications of X720?

Key specifications for X720: Overall Length: 13.000 INCHES MINIMUM IN; Outside Diameter: 3.375 INCHES MAXIMUM IN; Special Markings: WRENCH SIZE; Head Thickness: 1.344 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-357-8334 still in active supply?

NSN 5120-00-357-8334 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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