PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43539Extension,socket Wrench

Sears, Roebuck and Co. Dba Sears Div Sears Commercial · NSN 5120-01-398-7695 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-398-7695 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-398-7695. Primary manufacturer part number: 43539.
Features
  • Extension,socket Wrench — FSC 5120
  • Style Designator: RIGID
  • Material: STEEL OVERALL
  • Drive Surface Size: 0.250 INCHES NOMINAL BOTH ENDS IN
  • Specification/standard Data: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
  • Drive End Shape: SQUARE SECOND END EXTERNAL
  • Drive End Shape: SQUARE FIRST END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-01-398-7695, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Sears, Roebuck and Co. Dba Sears Div Sears Commercial. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 9 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
NSN5120-01-398-7695
Primary Part Number43539
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSears, Roebuck and Co. Dba Sears Div Sears Commercial
StatusCANCELLED
Style DesignatorRIGID
MaterialSTEEL OVERALL
Drive Surface Size0.250 INCHES NOMINAL BOTH ENDS IN
Specification/standard Data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
Drive End ShapeSQUARE SECOND END EXTERNAL
Drive End ShapeSQUARE FIRST END INTERNAL
Features ProvidedMANUAL TOOL
Surface TreatmentCHROMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-061-2033SMD422569-262 INTERCHANGEABLE
Coil,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5310-00-186-0961 INTERCHANGEABLE
Washer,key
3895-00-309-924024AVI2D INTERCHANGEABLE
Valve Assy,hydrauli
David Brown Hydraulics Inc Dba Hydreco
6515-00-310-91202280.14 INTERCHANGEABLE
Tractor,bone Wire
Depuy Inc
5950-00-351-7897SM-B-342457 INTERCHANGEABLE
Electromagnet
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2590-00-488-8323F12103 INTERCHANGEABLE
Cap,filler Opening
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
3030-00-529-0388 INTERCHANGEABLE
Belt,v
5950-00-627-9546C311-414 INTERCHANGEABLE
Transformer,radio Frequency
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
5340-00-662-9800 INTERCHANGEABLE
Bumper
5365-00-671-788343539 INTERCHANGEABLE
Spacer,piston
Triumph Engine Control Systems Llc
Cross-Reference Index
Part NumberManufacturer
43539 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
71-1203 Apex Tool Group, Llc Dba Nicholson (USA)
AS4283 Society of Automotive Engineers Inc (USA)
00943539000 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
71-1203 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
9-43539 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
10905 Apex Tool Group, Llc Dba Nicholson (USA)
10905 Easco Hand Tools Inc (USA)
AS4283 TY2CL2 General Services Administration Federal Supply Service (USA)
12103 WILDE Kipper Tool Company Dba Kipper Management Inc (USA)
12103 Wilde Tool Co., Inc. (USA)
10905 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
AS4283 Sae International Dba Sae International (USA)
Related Parts
5950-00-061-2033INTERCHANGEABLE
COIL,RADIO FREQUENCY
SMD422569-262
5310-00-186-0961INTERCHANGEABLE
WASHER,KEY
3895-00-309-9240INTERCHANGEABLE
VALVE ASSY,HYDRAULI
24AVI2D
6515-00-310-9120INTERCHANGEABLE
TRACTOR,BONE WIRE
2280.14
5950-00-351-7897INTERCHANGEABLE
ELECTROMAGNET
SM-B-342457
2590-00-488-8323INTERCHANGEABLE
CAP,FILLER OPENING
F12103
3030-00-529-0388INTERCHANGEABLE
BELT,V
5950-00-627-9546INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
C311-414
5340-00-662-9800INTERCHANGEABLE
BUMPER
5365-00-671-7883INTERCHANGEABLE
SPACER,PISTON
43539
2520-00-873-4831INTERCHANGEABLE
PLATE ASSEMBLY,CONVERTER
12103
5905-00-903-5165INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
1090-5

Frequently Asked Questions

What is NSN 5120-01-398-7695?

NSN 5120-01-398-7695 is a Extension,socket Wrench, manufactured by Sears, Roebuck and Co. Dba Sears Div Sears Commercial, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-398-7695?

NSN 5120-01-398-7695 has 13 cross-referenced part numbers: 43539 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), 71-1203 (Apex Tool Group, Llc Dba Nicholson), AS4283 (Society of Automotive Engineers Inc), 00943539000 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), 71-1203 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.) and 8 more.

What NSN replaces 5120-01-398-7695?

There are 12 known substitutes for 5120-01-398-7695: 5950-00-061-2033, 5310-00-186-0961, 3895-00-309-9240 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43539?

Key specifications for 43539: Style Designator: RIGID; Material: STEEL OVERALL; Drive Surface Size: 0.250 INCHES NOMINAL BOTH ENDS IN; Specification/standard Data: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-398-7695 still in active supply?

NSN 5120-01-398-7695 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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