PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-K-275Key,socket Head Screw

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5120-01-078-9669 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-078-9669 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-078-9669. Primary manufacturer part number: GGG-K-275.
Features
  • Key,socket Head Screw — FSC 5120
  • Blade Length: 2.000 INCHES NOMINAL IN
  • Wrenching Surface Size: 0.028 INCHES NOMINAL SINGLE END IN
  • Material: PLASTIC HANDLE
  • Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL
  • Material: STEEL WRENCHING SURFACE
  • Nondefinitive Spec/std Data: 7 TYPE AND 1 CLASS
  • Style Designator: SCREWDRIVER HANDLE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Handle construction
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-01-078-9669, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 8 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-078-9669
Primary Part NumberGGG-K-275
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Blade Length2.000 INCHES NOMINAL IN
Wrenching Surface Size0.028 INCHES NOMINAL SINGLE END IN
MaterialPLASTIC HANDLE
Wrenching Surface ShapeHEXAGON SINGLE END EXTERNAL
MaterialSTEEL WRENCHING SURFACE
Nondefinitive Spec/std Data7 TYPE AND 1 CLASS
Style DesignatorSCREWDRIVER HANDLE
Departure From Cited DesignatorAS MODIFIED BY OVERALL LENGTH AND BLADE LENGTH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-061-634757400 INTERCHANGEABLE
Key,socket Head Screw
H-K Connecticut Holding Company
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
5120-00-696-47685120-00-696-4768 INTERCHANGEABLE
Key Set,socket Head Screw
General Services Administration Federal Supply Service
Cross-Reference Index
Part NumberManufacturer
GGG-K-275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
607 0.028 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
GGG-K-275 TY7CL1 General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-061-6347INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
57400
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
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
5120-01-234-2795INTERCHANGEABLE
BLADE,SOCKET HEAD SCREW KEY

Frequently Asked Questions

What is NSN 5120-01-078-9669?

NSN 5120-01-078-9669 is a Key,socket Head Screw, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-078-9669?

NSN 5120-01-078-9669 has 3 cross-referenced part numbers: GGG-K-275 (Federal Specifications Promulgated by General Services Administration Washington DC), 607 0.028 (Allen Mfg Co Sub of Chicago Pneumatic Tool Co), GGG-K-275 TY7CL1 (General Services Administration Federal Supply Service).

What NSN replaces 5120-01-078-9669?

There are 12 known substitutes for 5120-01-078-9669: 5120-00-061-6347, 5120-00-177-7341, 5120-00-203-5107 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-K-275?

Key specifications for GGG-K-275: Blade Length: 2.000 INCHES NOMINAL IN; Wrenching Surface Size: 0.028 INCHES NOMINAL SINGLE END IN; Material: PLASTIC HANDLE; Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL. 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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