PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

57026Key,socket Head Screw

Apex Tool Group, Llc Dba Nicholson · NSN 5120-01-335-2092 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-2092 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-2092. Primary manufacturer part number: 57026.
Features
  • Key,socket Head Screw — FSC 5120
  • Wrenching Surface Size: 0.250 INCHES NOMINAL BOTH ENDS IN
  • Features Provided: SHORT SERIES
  • Material: STEEL OVERALL
  • Style Designator: L-HANDLE
  • Surface Treatment: OXIDE OVERALL
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
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 5120-01-335-2092, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-335-2092
Primary Part Number57026
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusACTIVE
Wrenching Surface Size0.250 INCHES NOMINAL BOTH ENDS IN
Features ProvidedSHORT SERIES
MaterialSTEEL OVERALL
Style DesignatorL-HANDLE
Surface TreatmentOXIDE OVERALL
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Specification/standard Data05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Short Arm Length1.125 INCHES NOMINAL IN
Long Arm Length3.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3040-00-086-5303 INTERCHANGEABLE
Gearshaft,bevel
5930-00-102-9383 INTERCHANGEABLE
Switch,rotary
5120-00-224-465913812 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
2805-00-366-034701006 INTERCHANGEABLE
Guide,valve Stem
Safeguard Powertech Systems
4130-01-299-919457026 INTERCHANGEABLE
Compressor,refrigeration
Standard Motor Products
5130-01-406-6450 INTERCHANGEABLE
Sander,disk,pneumatic,portable
5365-01-439-083557026 INTERCHANGEABLE
Spacer,special Shaped
Hendrickson Usa Llc
5935-01-459-78795-70-26 INTERCHANGEABLE
Adapter,connector
Ted Manufacturing Corp Div Ted Manufacturing Corporation
Cross-Reference Index
Part NumberManufacturer
57026 Apex Tool Group, Llc Dba Nicholson (USA)
57026 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
B18.3 The American Society of Mechanical Engineers (USA)
Related Parts
3040-00-086-5303INTERCHANGEABLE
GEARSHAFT,BEVEL
5930-00-102-9383INTERCHANGEABLE
SWITCH,ROTARY
5120-00-224-4659INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
13812
2805-00-366-0347INTERCHANGEABLE
GUIDE,VALVE STEM
01006
4130-01-299-9194INTERCHANGEABLE
COMPRESSOR,REFRIGERATION
57026
5130-01-406-6450INTERCHANGEABLE
SANDER,DISK,PNEUMATIC,PORTABLE
5365-01-439-0835INTERCHANGEABLE
SPACER,SPECIAL SHAPED
57026
5935-01-459-7879INTERCHANGEABLE
ADAPTER,CONNECTOR
5-70-26

Frequently Asked Questions

What is NSN 5120-01-335-2092?

NSN 5120-01-335-2092 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 5120-01-335-2092?

NSN 5120-01-335-2092 has 3 cross-referenced part numbers: 57026 (Apex Tool Group, Llc Dba Nicholson), 57026 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), B18.3 (The American Society of Mechanical Engineers).

What NSN replaces 5120-01-335-2092?

There are 8 known substitutes for 5120-01-335-2092: 3040-00-086-5303, 5930-00-102-9383, 5120-00-224-4659 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 57026?

Key specifications for 57026: Wrenching Surface Size: 0.250 INCHES NOMINAL BOTH ENDS IN; Features Provided: SHORT SERIES; Material: STEEL OVERALL; Style Designator: L-HANDLE. 9 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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