PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-K-275Key,socket Head Screw

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5120-00-177-7063 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-177-7063 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-177-7063. Primary manufacturer part number: GGG-K-275.
Features
  • Key,socket Head Screw — FSC 5120
  • Material: STEEL OVERALL
  • Features Provided: REPLACEABLE WRENCHING FEATURE
  • Wrenching Surface Size: 0.141 INCHES NOMINAL SINGLE END IN
  • Style Designator: TEE HANDLE
  • Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL
  • 6 verified cross-references
  • Primary manufacturer: Federal Specifications Promulgated by General Services Administration Washington DC
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 5120-00-177-7063, 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 5 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: Active.

Technical Specifications
ParameterValue
NSN5120-00-177-7063
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
MaterialSTEEL OVERALL
Features ProvidedREPLACEABLE WRENCHING FEATURE
Wrenching Surface Size0.141 INCHES NOMINAL SINGLE END IN
Style DesignatorTEE HANDLE
Wrenching Surface ShapeHEXAGON SINGLE END EXTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5360-00-194-751628MZ19CS INTERCHANGEABLE
Spring,set
Prestolite Electric Inc
5330-00-770-38656155 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
5340-01-107-1870N56050 INTERCHANGEABLE
Seat,helical Compression Spring
Leslie Controls, Inc. Dba Leslie Controls Inc
5962-01-263-0959 INTERCHANGEABLE
Microcircuit,digital
5962-01-275-0366 INTERCHANGEABLE
Microcircuit,digital
5962-01-275-0367 INTERCHANGEABLE
Microcircuit,digital
5962-01-303-3559 INTERCHANGEABLE
Microcircuit,digital
6620-01-422-27751407018 INTERCHANGEABLE
Indicator,pressure
Landoll Company, Llc
4730-01-563-5902 INTERCHANGEABLE
Clamp,hose
4720-01-563-5980 INTERCHANGEABLE
Hose,nonmetallic
Cross-Reference Index
Part NumberManufacturer
GGG-K-275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
56050 Apex Tool Group, Llc Dba Nicholson (USA)
56050 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
609-9/64 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
78008 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
GGG-K-275 TY6STA General Services Administration Federal Supply Service (USA)
Related Parts
5360-00-194-7516INTERCHANGEABLE
SPRING,SET
28MZ19CS
5330-00-770-3865INTERCHANGEABLE
SEAL,PLAIN ENCASED
6155
5340-01-107-1870INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
N56050
5962-01-263-0959INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-275-0366INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-275-0367INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-303-3559INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
6620-01-422-2775INTERCHANGEABLE
INDICATOR,PRESSURE
1407018
4730-01-563-5902INTERCHANGEABLE
CLAMP,HOSE
4720-01-563-5980INTERCHANGEABLE
HOSE,NONMETALLIC
4720-01-563-6103INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
78008-100
5120-01-622-3479INTERCHANGEABLE
PLIERS,SLIP JOINT
78-008

Frequently Asked Questions

What is NSN 5120-00-177-7063?

NSN 5120-00-177-7063 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 5120-00-177-7063?

NSN 5120-00-177-7063 has 6 cross-referenced part numbers: GGG-K-275 (Federal Specifications Promulgated by General Services Administration Washington DC), 56050 (Apex Tool Group, Llc Dba Nicholson), 56050 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 609-9/64 (Allen Mfg Co Sub of Chicago Pneumatic Tool Co), 78008 (Allen Mfg Co Sub of Chicago Pneumatic Tool Co) and 1 more.

What NSN replaces 5120-00-177-7063?

There are 12 known substitutes for 5120-00-177-7063: 5360-00-194-7516, 5330-00-770-3865, 5340-01-107-1870 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-K-275?

Key specifications for GGG-K-275: Material: STEEL OVERALL; Features Provided: REPLACEABLE WRENCHING FEATURE; Overall Length: 4.000 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN; Wrenching Surface Size: 0.141 INCHES NOMINAL SINGLE END IN. 7 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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