PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5C1Key,socket Head Screw

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-00-177-6874 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-177-6874 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-177-6874. Primary manufacturer part number: 5C1.
Features
  • Key,socket Head Screw — FSC 5120
  • Surface Treatment: OXIDE OVERALL
  • Blade Length: 3.750 INCHES NOMINAL IN
  • Material: STEEL WRENCHING SURFACE
  • Wrenching Surface Size: 0.109 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL
  • Material: PLASTIC HANDLE
  • Style Designator: SCREWDRIVER HANDLE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Wrenching Surface construction
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-00-177-6874, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-177-6874
Primary Part Number5C1
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEasco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.
StatusACTIVE
Surface TreatmentOXIDE OVERALL
Blade Length3.750 INCHES NOMINAL IN
MaterialSTEEL WRENCHING SURFACE
Wrenching Surface Size0.109 INCHES NOMINAL SINGLE END IN
Wrenching Surface ShapeHEXAGON SINGLE END EXTERNAL
MaterialPLASTIC HANDLE
Style DesignatorSCREWDRIVER HANDLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5340-00-037-26385C1 INTERCHANGEABLE
Clamp
The Boeing Company Div Legacy Am&m
3030-00-529-0353227241 INTERCHANGEABLE
Belt,v
Manitowoc Engineering Co Division of the Manitowoc Co Inc
4820-00-932-09581-2035 INTERCHANGEABLE
Valve,safety Relief
Frank Electric Corporation Dba Frank Electric Corporation
6625-00-976-9503 INTERCHANGEABLE
Switch,electronic
5998-01-038-0158 INTERCHANGEABLE
Circuit Card Assembly
5930-01-043-487512035 INTERCHANGEABLE
Switch,sensitive
Power Control Devices, Inc.
5985-01-063-5903 INTERCHANGEABLE
Coupler,transmission Line
5305-01-217-5899 INTERCHANGEABLE
Screw,machine
1377-01-260-5473 INTERCHANGEABLE
Initiator,cartridge Actuated
6105-01-280-534312035 INTERCHANGEABLE
Diaphragm
Melrath Gasket
Cross-Reference Index
Part NumberManufacturer
5C1 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
12035 Apex Tool Group, Llc Dba Nicholson (USA)
12035 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
Related Parts
5340-00-037-2638INTERCHANGEABLE
CLAMP
5C1
3030-00-529-0353INTERCHANGEABLE
BELT,V
227241
4820-00-932-0958INTERCHANGEABLE
VALVE,SAFETY RELIEF
1-2035
6625-00-976-9503INTERCHANGEABLE
SWITCH,ELECTRONIC
5998-01-038-0158INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5930-01-043-4875INTERCHANGEABLE
SWITCH,SENSITIVE
12035
5985-01-063-5903INTERCHANGEABLE
COUPLER,TRANSMISSION LINE
5305-01-217-5899INTERCHANGEABLE
SCREW,MACHINE
1377-01-260-5473INTERCHANGEABLE
INITIATOR,CARTRIDGE ACTUATED
6105-01-280-5343INTERCHANGEABLE
DIAPHRAGM
12035
1005-01-459-4783INTERCHANGEABLE
EXTRACTOR,CARTRIDGE
12035
5330-01-600-9114INTERCHANGEABLE
SEAL,PLAIN
12035

Frequently Asked Questions

What is NSN 5120-00-177-6874?

NSN 5120-00-177-6874 is a Key,socket Head Screw, manufactured by Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc., classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-177-6874?

NSN 5120-00-177-6874 has 3 cross-referenced part numbers: 5C1 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 12035 (Apex Tool Group, Llc Dba Nicholson), 12035 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.).

What NSN replaces 5120-00-177-6874?

There are 12 known substitutes for 5120-00-177-6874: 5340-00-037-2638, 3030-00-529-0353, 4820-00-932-0958 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5C1?

Key specifications for 5C1: Surface Treatment: OXIDE OVERALL; Blade Length: 3.750 INCHES NOMINAL IN; Material: STEEL WRENCHING SURFACE; Wrenching Surface Size: 0.109 INCHES NOMINAL SINGLE END IN. 8 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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