PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27-343Wrench,box

Apex Tool Group, Llc Dba Nicholson · NSN 5120-01-654-1794 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-654-1794 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-654-1794. Primary manufacturer part number: 27-343.
Features
  • Wrench,box — FSC 5120
  • Material: STEEL OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Apex Tool Group, Llc Dba Nicholson
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-01-654-1794, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc Dba Nicholson. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-654-1794
Primary Part Number27-343
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusACTIVE
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5133-00-233-6398 INTERCHANGEABLE
Drill,twist
3110-00-554-6034 INTERCHANGEABLE
Bearing,ball,annular
5977-01-020-366741928 INTERCHANGEABLE
Ring Assembly,electrical Contact
Moog Inc.
5330-01-237-299527343 INTERCHANGEABLE
Retainer,packing
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
27-343 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5133-00-233-6398INTERCHANGEABLE
DRILL,TWIST
3110-00-554-6034INTERCHANGEABLE
BEARING,BALL,ANNULAR
5977-01-020-3667INTERCHANGEABLE
RING ASSEMBLY,ELECTRICAL CONTACT
41928
5330-01-237-2995INTERCHANGEABLE
RETAINER,PACKING
27343

Frequently Asked Questions

What is NSN 5120-01-654-1794?

NSN 5120-01-654-1794 is a Wrench,box, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-654-1794?

NSN 5120-01-654-1794 has 1 cross-referenced part number: 27-343 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-654-1794?

There are 4 known substitutes for 5120-01-654-1794: 5133-00-233-6398, 3110-00-554-6034, 5977-01-020-3667 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27-343?

Key specifications for 27-343: Special Features: FASTENER END 3/8", WIDTH 0.562, THICKNESS 0.296 (END A), (END B) FASTENER END 7/16", WIDTH 0.656, THICKNESS 0.312; Part Name Assigned by Controlling Agency: WRENCH, BOX; Overall Length: 7.312 INCHES NOMINAL IN; Material: STEEL OVERALL. 4 total characteristics are documented in the Federal Logistics Information System.

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