PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40707Socket,socket Wrench

Sk Hand Tool · NSN 5120-01-398-7702 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-398-7702 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-398-7702. Primary manufacturer part number: 40707.
Features
  • Socket,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
  • Specification/standard Data: 05047-ASME B107.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Size: 8.0 MILLIMETERS NOMINAL SINGLE END MM
  • Style Designator: INTERNAL-INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-398-7702, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Sk Hand Tool. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-398-7702
Primary Part Number40707
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSk Hand Tool
StatusACTIVE
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Specification/standard Data05047-ASME B107.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size8.0 MILLIMETERS NOMINAL SINGLE END MM
Style DesignatorINTERNAL-INTERNAL
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Features ProvidedMANUAL TOOL
Drive End ShapeSQUARE SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5342-00-274-891043504 INTERCHANGEABLE
Pad,toggle
Jergens Inc Div Tooling Components Division
5950-00-646-104823550REVA INTERCHANGEABLE
Reactor
L3harris Technologies, Inc Div Space & Airborne Systems
5905-00-665-929743504 INTERCHANGEABLE
Resistor Assembly
L3harris Technologies, Inc Div Space & Airborne Systems
3455-00-971-890817614 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
5365-01-125-521240707 INTERCHANGEABLE
Plug,machine Thread
Rogerson Aircraft Equipment Group
6150-01-300-214640707-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
6150-01-319-2582102002A01F030 INTERCHANGEABLE
Cable Assembly,power,electrical
Woodhead, Lp Dba Woodhead Div Integrated Products Group
4810-01-373-183243504 INTERCHANGEABLE
Parts Kit,electro-Mechanical Rot
Meggitt North Hollywood Inc
5310-01-548-892143504 INTERCHANGEABLE
Washer,flat
Bourns Inc
4820-01-646-3896 INTERCHANGEABLE
Valve,ball
Cross-Reference Index
Part NumberManufacturer
00943504000 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
B107.5 The American Society of Mechanical Engineers (USA)
40707 PRIMARY Sk Hand Tool (USA)
B107.5 TY1CL1 General Services Administration Federal Supply Service (USA)
9-43504 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
43504 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
20-08MM Wright Tool Company, Llc (USA)
Related Parts
5342-00-274-8910INTERCHANGEABLE
PAD,TOGGLE
43504
5950-00-646-1048INTERCHANGEABLE
REACTOR
23550REVA
5905-00-665-9297INTERCHANGEABLE
RESISTOR ASSEMBLY
43504
3455-00-971-8908INTERCHANGEABLE
CUTTER,MILLING,END
17614
5365-01-125-5212INTERCHANGEABLE
PLUG,MACHINE THREAD
40707
6150-01-300-2146INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
40707-1
6150-01-319-2582INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
102002A01F030
4810-01-373-1832INTERCHANGEABLE
PARTS KIT,ELECTRO-MECHANICAL ROT
43504
5310-01-548-8921INTERCHANGEABLE
WASHER,FLAT
43504
4820-01-646-3896INTERCHANGEABLE
VALVE,BALL
3460-01-659-5097INTERCHANGEABLE
ARBOR,SHELL END MILL
43504

Frequently Asked Questions

What is NSN 5120-01-398-7702?

NSN 5120-01-398-7702 is a Socket,socket Wrench, manufactured by Sk Hand Tool, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-398-7702?

NSN 5120-01-398-7702 has 7 cross-referenced part numbers: 00943504000 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), B107.5 (The American Society of Mechanical Engineers), 40707 (Sk Hand Tool), B107.5 TY1CL1 (General Services Administration Federal Supply Service), 9-43504 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial) and 2 more.

What NSN replaces 5120-01-398-7702?

There are 11 known substitutes for 5120-01-398-7702: 5342-00-274-8910, 5950-00-646-1048, 5905-00-665-9297 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40707?

Key specifications for 40707: Material: STEEL OVERALL; Surface Treatment: CHROMIUM OVERALL; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS; Specification/standard Data: 05047-ASME B107.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 11 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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