PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27028Extension,socket Wrench

Wta Tool Llc · NSN 5120-00-243-1689 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-243-1689 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-243-1689. Primary manufacturer part number: 27028.
Features
  • Extension,socket Wrench — FSC 5120
  • Drive End Shape: SQUARE FIRST END INTERNAL
  • Style Designator: RIGID
  • Surface Treatment: CHROMIUM OVERALL
  • Features Provided: MANUAL TOOL
  • Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
  • Drive Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
Applications
  • Applications requiring Steel Overall construction
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-00-243-1689, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Wta Tool Llc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 28 commercial cross-references from 20 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
NSN5120-00-243-1689
Primary Part Number27028
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerWta Tool Llc
StatusCANCELLED
Drive End ShapeSQUARE FIRST END INTERNAL
Style DesignatorRIGID
Surface TreatmentCHROMIUM OVERALL
Features ProvidedMANUAL TOOL
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Drive Surface Size0.375 INCHES NOMINAL BOTH ENDS IN
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
Specification/standard Data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive End ShapeSQUARE SECOND END EXTERNAL
MaterialSTEEL OVERALL
Outside Diameter0.500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3030-00-014-0128 INTERCHANGEABLE
Belt,v
3110-00-100-35980604386 INTERCHANGEABLE
Cone and Rollers,tapered Roller
New Holland Construction
3110-00-120-3085148406 INTERCHANGEABLE
Bearing,roller,needle
Rolls-Royce Solutions America Inc
6240-00-143-3049 INTERCHANGEABLE
Lamp,incandescent
5930-00-213-635410667827 INTERCHANGEABLE
Switch,rotary
Us Army Aviation and Missile Command
5120-00-227-8074JHWS-115P INTERCHANGEABLE
Extension,socket Wrench
Williams J H Industrial Products Inc
5120-00-227-8079 INTERCHANGEABLE
Extension,socket Wrench
5120-00-227-8105 INTERCHANGEABLE
Extension,socket Wrench
5120-00-227-8107 INTERCHANGEABLE
Extension,socket Wrench
5120-00-240-8704 INTERCHANGEABLE
Extension,socket Wrench
Cross-Reference Index
Part NumberManufacturer
27028 Wta Tool Llc (USA)
SCMT13915 The Stanley Works Pty Ltd (AUS)
GGG-W-641 TY4CL4STA General Services Administration Federal Supply Service (USA)
11905 Apex Tool Group, Llc Dba Nicholson (USA)
B107.10M The American Society of Mechanical Engineers (USA)
45160 S-K HAND TOOLS Kipper Tool Company Dba Kipper Management Inc (USA)
A113905 ITEM 28 General Dynamics Mission Systems, Inc. (USA)
B107.10M TY2CL2ST1 General Services Administration Federal Supply Service (USA)
AS4283 TY2CL2 General Services Administration Federal Supply Service (USA)
72-1203 Apex Tool Group, Llc Dba Nicholson (USA)
0425 5411 Blackwood J. Blackwood & Son Pty Ltd (AUS)
11905 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
FX2 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS4283 Society of Automotive Engineers Inc (USA)
A113905 ITEM 28 General Dynamics Advanced Technology Systems Inc (USA)
B107.10 TY2CL2STA General Services Administration Federal Supply Service (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B107.10 The American Society of Mechanical Engineers (USA)
11905 Easco Hand Tools Inc (USA)
B-108 WILLIAMS Kipper Tool Company Dba Kipper Management Inc (USA)
Related Parts
3030-00-014-0128INTERCHANGEABLE
BELT,V
3110-00-100-3598INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
0604386
3110-00-120-3085INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
148406
6240-00-143-3049INTERCHANGEABLE
LAMP,INCANDESCENT
5930-00-213-6354INTERCHANGEABLE
SWITCH,ROTARY
10667827
5120-00-227-8074INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
JHWS-115P
5120-00-227-8079INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-227-8105INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-227-8107INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-240-8704INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-240-8705INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
5120-00-240-8706INTERCHANGEABLE
EXTENSION,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-00-243-1689?

NSN 5120-00-243-1689 is a Extension,socket Wrench, manufactured by Wta Tool Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-243-1689?

NSN 5120-00-243-1689 has 28 cross-referenced part numbers: 27028 (Wta Tool Llc), SCMT13915 (The Stanley Works Pty Ltd), GGG-W-641 TY4CL4STA (General Services Administration Federal Supply Service), 11905 (Apex Tool Group, Llc Dba Nicholson), B107.10M (The American Society of Mechanical Engineers) and 23 more.

What NSN replaces 5120-00-243-1689?

There are 12 known substitutes for 5120-00-243-1689: 3030-00-014-0128, 3110-00-100-3598, 3110-00-120-3085 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27028?

Key specifications for 27028: Overall Length: 2.87 INCHES MINIMUM AND 3.11 INCHES MAXIMUM IN; Drive End Shape: SQUARE FIRST END INTERNAL; Style Designator: RIGID; Surface Treatment: CHROMIUM OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-243-1689 still in active supply?

NSN 5120-00-243-1689 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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