PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

57400Key,socket Head Screw

H-K Connecticut Holding Company · NSN 5120-00-061-6347 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-061-6347 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-061-6347. Primary manufacturer part number: 57400.
Features
  • Key,socket Head Screw — FSC 5120
  • Surface Treatment: OXIDE OVERALL
  • Material: STEEL WRENCHING SURFACE
  • Wrenching Surface Size: 0.028 INCHES NOMINAL SINGLE END IN
  • Blade Length: 2.000 INCHES NOMINAL IN
  • Style Designator: SCREWDRIVER HANDLE
  • Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL
  • Material: PLASTIC 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 5120-00-061-6347, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is H-K Connecticut Holding Company. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-061-6347
Primary Part Number57400
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerH-K Connecticut Holding Company
StatusCANCELLED
Surface TreatmentOXIDE OVERALL
MaterialSTEEL WRENCHING SURFACE
Wrenching Surface Size0.028 INCHES NOMINAL SINGLE END IN
Blade Length2.000 INCHES NOMINAL IN
Style DesignatorSCREWDRIVER HANDLE
Wrenching Surface ShapeHEXAGON SINGLE END EXTERNAL
MaterialPLASTIC HANDLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-177-73415120-00-177-7341 INTERCHANGEABLE
Key,socket Head Screw
General Services Administration Federal Supply Service
5120-00-203-5107 INTERCHANGEABLE
Key,socket Head Screw
5120-00-224-2508 INTERCHANGEABLE
Key,socket Head Screw
5120-00-288-8853 INTERCHANGEABLE
Key,socket Head Screw
5120-00-293-2219 INTERCHANGEABLE
Key,socket Head Screw
5120-00-293-2243 INTERCHANGEABLE
Key,socket Head Screw
5120-00-293-9204 INTERCHANGEABLE
Key,socket Head Screw
5120-00-293-92065120-00-293-9206 INTERCHANGEABLE
Key,socket Head Screw
General Services Administration Federal Supply Service
5935-00-681-5616031-0052-0001 INTERCHANGEABLE
Connector,receptacle,electrical
Te Connectivity Corporation Dba Microdot Products
5120-00-696-47685120-00-696-4768 INTERCHANGEABLE
Key Set,socket Head Screw
General Services Administration Federal Supply Service
Cross-Reference Index
Part NumberManufacturer
57400 PRIMARY H-K Connecticut Holding Company (USA)
74000 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
607 0.028 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
526-1-110-1 L3harris Interstate Electronics Corporation (USA)
GGG-K-275 TY7CL1 General Services Administration Federal Supply Service (USA)
GGG-K-275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5120-00-177-7341INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-177-7341
5120-00-203-5107INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-224-2508INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-288-8853INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-293-2219INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-293-2243INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-293-9204INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-293-9206INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-293-9206
5935-00-681-5616INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
031-0052-0001
5120-00-696-4768INTERCHANGEABLE
KEY SET,SOCKET HEAD SCREW
5120-00-696-4768
5120-00-912-1085INTERCHANGEABLE
KEY SET,SOCKET HEAD SCREW
5120-00-912-1085
1680-01-059-8931INTERCHANGEABLE
CONTROL,THREE-WAY TWO POSITION V
975141-1

Frequently Asked Questions

What is NSN 5120-00-061-6347?

NSN 5120-00-061-6347 is a Key,socket Head Screw, manufactured by H-K Connecticut Holding Company, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-061-6347?

NSN 5120-00-061-6347 has 6 cross-referenced part numbers: 57400 (H-K Connecticut Holding Company), 74000 (Allen Mfg Co Sub of Chicago Pneumatic Tool Co), 607 0.028 (Allen Mfg Co Sub of Chicago Pneumatic Tool Co), 526-1-110-1 (L3harris Interstate Electronics Corporation), GGG-K-275 TY7CL1 (General Services Administration Federal Supply Service) and 1 more.

What NSN replaces 5120-00-061-6347?

There are 12 known substitutes for 5120-00-061-6347: 5120-00-177-7341, 5120-00-203-5107, 5120-00-224-2508 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 57400?

Key specifications for 57400: Surface Treatment: OXIDE OVERALL; Material: STEEL WRENCHING SURFACE; Wrenching Surface Size: 0.028 INCHES NOMINAL SINGLE END IN; Blade Length: 2.000 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-061-6347 still in active supply?

NSN 5120-00-061-6347 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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