PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40430Socket,socket Wrench

S K Hand Tool Corp · NSN 5120-01-431-2770 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-431-2770 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-431-2770. Primary manufacturer part number: 40430.
Features
  • Socket,socket Wrench — FSC 5120
  • Style Designator: INTERNAL-INTERNAL
  • Wrenching Surface Size: 0.938 INCHES NOMINAL SINGLE END IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Shape: 6 POINT SINGLE END INTERNAL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-431-2770, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is S K Hand Tool Corp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5120-01-431-2770
Primary Part Number40430
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerS K Hand Tool Corp
StatusACTIVE
Style DesignatorINTERNAL-INTERNAL
Wrenching Surface Size0.938 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Features ProvidedMANUAL TOOL
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-449-7030 INTERCHANGEABLE
Semiconductor Device,thyristor
5950-00-504-0461152463-01 INTERCHANGEABLE
Reactor
Ge Aviation Systems Llc
5330-00-847-312640430 INTERCHANGEABLE
Gasket
Liquid Controls, L.l.c. Div Idex Corporation
6150-01-050-508840430 INTERCHANGEABLE
Cable Assembly,power,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
5962-01-078-574740430 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
4330-01-164-6257 INTERCHANGEABLE
Head,fluid Filter
4330-01-170-9864 INTERCHANGEABLE
Head,fluid Filter
4330-01-172-4859 INTERCHANGEABLE
Filter Body,fluid
4330-01-173-4273 INTERCHANGEABLE
Filter Body,fluid
4330-01-173-8465 INTERCHANGEABLE
Filter,fluid
Cross-Reference Index
Part NumberManufacturer
40430 PRIMARY S K Hand Tool Corp (USA)
Related Parts
5961-00-449-7030INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
5950-00-504-0461INTERCHANGEABLE
REACTOR
152463-01
5330-00-847-3126INTERCHANGEABLE
GASKET
40430
6150-01-050-5088INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
40430
5962-01-078-5747INTERCHANGEABLE
MICROCIRCUIT,MEMORY
40430
4330-01-164-6257INTERCHANGEABLE
HEAD,FLUID FILTER
4330-01-170-9864INTERCHANGEABLE
HEAD,FLUID FILTER
4330-01-172-4859INTERCHANGEABLE
FILTER BODY,FLUID
4330-01-173-4273INTERCHANGEABLE
FILTER BODY,FLUID
4330-01-173-8465INTERCHANGEABLE
FILTER,FLUID
5895-01-626-8817INTERCHANGEABLE
CONVERTER,SIGNAL DATA
40430
7490-01-643-8277INTERCHANGEABLE
SHREDDING MACHINE,PAPER
40430

Frequently Asked Questions

What is NSN 5120-01-431-2770?

NSN 5120-01-431-2770 is a Socket,socket Wrench, manufactured by S K Hand Tool Corp, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-431-2770?

NSN 5120-01-431-2770 has 1 cross-referenced part number: 40430 (S K Hand Tool Corp).

What NSN replaces 5120-01-431-2770?

There are 12 known substitutes for 5120-01-431-2770: 5961-00-449-7030, 5950-00-504-0461, 5330-00-847-3126 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40430?

Key specifications for 40430: Style Designator: INTERNAL-INTERNAL; Wrenching Surface Size: 0.938 INCHES NOMINAL SINGLE END IN; Drive End Shape: SQUARE SINGLE END INTERNAL; Features Provided: MANUAL TOOL. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com