PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

59112Key,socket Head Screw

Apex Tool Group, Llc Dba Nicholson · NSN 5120-01-646-5851 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-646-5851 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-646-5851. Primary manufacturer part number: 59112.
Features
  • Key,socket Head Screw — FSC 5120
  • Wrenching Surface Size: 6.0 MILLIMETERS NOMINAL BOTH ENDS MM
  • Features Provided: BALL END AND LONG SERIES
  • Specification/standard Data: 05047-ASME B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Surface Treatment: OXIDE OVERALL
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Style Designator: L-HANDLE
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-01-646-5851, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-646-5851
Primary Part Number59112
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusACTIVE
Wrenching Surface Size6.0 MILLIMETERS NOMINAL BOTH ENDS MM
Features ProvidedBALL END AND LONG SERIES
Specification/standard Data05047-ASME B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface TreatmentOXIDE OVERALL
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Style DesignatorL-HANDLE
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
7510-00-224-6732 INTERCHANGEABLE
Ink,marking Stencil
5133-00-241-6178 INTERCHANGEABLE
Drill,twist
4820-00-261-460559112 INTERCHANGEABLE
Valve,flow Control
Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
4730-00-278-3553390035PC795 INTERCHANGEABLE
Nipple,pipe
Naval Sea Systems Command
9540-00-988-8623 INTERCHANGEABLE
Beam,structural
5930-01-564-445859-112 INTERCHANGEABLE
Push Button
Avl Technologies Inc Dba Avl Technologies Inc
Cross-Reference Index
Part NumberManufacturer
59112 Apex Tool Group, Llc Dba Nicholson (USA)
B18.3.2 The American Society of Mechanical Engineers (USA)
59112 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
59112 Easco Hand Tools Inc (USA)
Related Parts
7510-00-224-6732INTERCHANGEABLE
INK,MARKING STENCIL
5133-00-241-6178INTERCHANGEABLE
DRILL,TWIST
4820-00-261-4605INTERCHANGEABLE
VALVE,FLOW CONTROL
59112
4730-00-278-3553INTERCHANGEABLE
NIPPLE,PIPE
390035PC795
9540-00-988-8623INTERCHANGEABLE
BEAM,STRUCTURAL
5930-01-564-4458INTERCHANGEABLE
PUSH BUTTON
59-112

Frequently Asked Questions

What is NSN 5120-01-646-5851?

NSN 5120-01-646-5851 is a Key,socket Head Screw, 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 5120-01-646-5851?

NSN 5120-01-646-5851 has 4 cross-referenced part numbers: 59112 (Apex Tool Group, Llc Dba Nicholson), B18.3.2 (The American Society of Mechanical Engineers), 59112 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 59112 (Easco Hand Tools Inc).

What NSN replaces 5120-01-646-5851?

There are 6 known substitutes for 5120-01-646-5851: 7510-00-224-6732, 5133-00-241-6178, 4820-00-261-4605 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 59112?

Key specifications for 59112: Overall Length: 5.500 INCHES NOMINAL IN; Wrenching Surface Size: 6.0 MILLIMETERS NOMINAL BOTH ENDS MM; Features Provided: BALL END AND LONG SERIES; Specification/standard Data: 05047-ASME B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com