PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-K-275 TY1CL2Key,socket Head Screw

General Services Administration Federal Supply Service · NSN 5120-00-198-5402 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-198-5402 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-198-5402. Primary manufacturer part number: GGG-K-275 TY1CL2.
Features
  • Key,socket Head Screw — FSC 5120
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Style Designator: L-HANDLE
  • Material: STEEL OVERALL
  • Wrenching Surface Size: 0.750 INCHES NOMINAL BOTH ENDS IN
  • Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Features Provided: LONG SERIES
  • Short Arm Length: 2.031 INCHES MINIMUM AND 2.219 INCHES MAXIMUM IN
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 5120-00-198-5402, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is General Services Administration Federal Supply Service. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 11 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
NSN5120-00-198-5402
Primary Part NumberGGG-K-275 TY1CL2
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Style DesignatorL-HANDLE
MaterialSTEEL OVERALL
Wrenching Surface Size0.750 INCHES NOMINAL BOTH ENDS IN
Specification/standard Data05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Features ProvidedLONG SERIES
Short Arm Length2.031 INCHES MINIMUM AND 2.219 INCHES MAXIMUM IN
Long Arm Length11.156 INCHES MINIMUM AND 11.344 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3040-00-140-563170019 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Texas Hydraulics, Inc.
5930-00-229-8996 INTERCHANGEABLE
Switch,toggle
8135-00-245-94395/8.030 INTERCHANGEABLE
Strapping
Independent Metal Strap Co Inc
5315-00-271-421370019 INTERCHANGEABLE
Key,machine
Hoffman/new Yorker, Inc.
5962-00-421-6465 INTERCHANGEABLE
Microcircuit,digital
5120-01-045-4896 INTERCHANGEABLE
Key,socket Head Screw
5320-01-085-331970019 INTERCHANGEABLE
Rivet,solid
Cnh Industrial America Llc Dba Cnh America
5905-01-109-5166 INTERCHANGEABLE
Resistor
5306-01-132-0498070019 INTERCHANGEABLE
Bolt,shoulder
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
2590-01-180-984470019 INTERCHANGEABLE
Parts Kit
DP Manufacturing Inc.
Cross-Reference Index
Part NumberManufacturer
GGG-K-275 TY1CL2 General Services Administration Federal Supply Service (USA)
01984905 J Blackwood & Son Ltd (AUS)
41W2410-140 Marine Corps (USA)
58030 Apex Tool Group, Llc Dba Nicholson (USA)
GGG-K-275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-2473 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
70019 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
B18.3 The American Society of Mechanical Engineers (USA)
58030 Allen Tool Phoenix, Inc (USA)
58030 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
0198 3702 Blackwood J. Blackwood & Son Pty Ltd (AUS)
Related Parts
3040-00-140-5631INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
70019
5930-00-229-8996INTERCHANGEABLE
SWITCH,TOGGLE
8135-00-245-9439INTERCHANGEABLE
STRAPPING
5/8.030
5315-00-271-4213INTERCHANGEABLE
KEY,MACHINE
70019
5962-00-421-6465INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5120-01-045-4896INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5320-01-085-3319INTERCHANGEABLE
RIVET,SOLID
70019
5905-01-109-5166INTERCHANGEABLE
RESISTOR
5306-01-132-0498INTERCHANGEABLE
BOLT,SHOULDER
070019
2590-01-180-9844INTERCHANGEABLE
PARTS KIT
70019
5950-01-296-1045INTERCHANGEABLE
COIL,RADIO FREQUENCY
70-019
7310-01-374-5691INTERCHANGEABLE
COFFEE MAKER,PERCOLATOR
58030

Frequently Asked Questions

What is NSN 5120-00-198-5402?

NSN 5120-00-198-5402 is a Key,socket Head Screw, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-198-5402?

NSN 5120-00-198-5402 has 11 cross-referenced part numbers: GGG-K-275 TY1CL2 (General Services Administration Federal Supply Service), 01984905 (J Blackwood & Son Ltd), 41W2410-140 (Marine Corps), 58030 (Apex Tool Group, Llc Dba Nicholson), GGG-K-275 (Federal Specifications Promulgated by General Services Administration Washington DC) and 6 more.

What NSN replaces 5120-00-198-5402?

There are 12 known substitutes for 5120-00-198-5402: 3040-00-140-5631, 5930-00-229-8996, 8135-00-245-9439 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-K-275 TY1CL2?

Key specifications for GGG-K-275 TY1CL2: Overall Length: 11.906 INCHES MINIMUM AND 12.094 INCHES MAXIMUM IN; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL; Style Designator: L-HANDLE; Material: STEEL OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-198-5402 still in active supply?

NSN 5120-00-198-5402 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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