PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J5526Socket,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-9681 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9681 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9681. Primary manufacturer part number: J5526.
Features
  • Socket,socket Wrench — FSC 5120
  • Features Provided: MANUAL TOOL
  • Style Designator: INTERNAL-INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Drive Surface Size: 0.750 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Size: 0.812 INCHES NOMINAL SINGLE END IN
  • Material: STEEL OVERALL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-399-9681, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN5120-01-399-9681
Primary Part NumberJ5526
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Features ProvidedMANUAL TOOL
Style DesignatorINTERNAL-INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Drive Surface Size0.750 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size0.812 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6210-00-299-30555526 INTERCHANGEABLE
Fixture,lighting
Adirondack Chair Co Inc Dba Adirondack Rents Div Adirondack Direct
6210-00-299-4731 INTERCHANGEABLE
Fixture,lighting
6532-00-412-1658630-010 INTERCHANGEABLE
Cap,operating,surgical
Central Scientific Co Educational
5330-00-527-75624005526 INTERCHANGEABLE
Gasket
Agco Corp Parts Opn
3120-00-707-70045526 INTERCHANGEABLE
Bushing,sleeve
Goodrich Aerospace Canada Ltd
8040-01-155-5729 INTERCHANGEABLE
Adhesive
6105-01-199-324155-26-2 INTERCHANGEABLE
Motor,direct Current
Electromech Technologies Llc
5975-01-280-33125526 INTERCHANGEABLE
Box Connector,electrical
Woodhead, Lp Dba Woodhead Div Integrated Products Group
6540-01-384-72925526 INTERCHANGEABLE
Goggles,protective,infection
Szy Holdings, Llc Dba Szy Holdings Llc
5945-01-442-97915527-ZD 1439987 INTERCHANGEABLE
Relay,electromagnetic
Abb Drives Inc
Cross-Reference Index
Part NumberManufacturer
5526 The Stanley Works Dba Stanley Proto (USA)
J5526 PRIMARY The Stanley Works Dba Stanley Proto (USA)
1AP41 W.w. Grainger, Inc. Div Government Sales Division (USA)
STP 5526G Kipper Tool Company Dba Kipper Management Inc (USA)
Related Parts
6210-00-299-3055INTERCHANGEABLE
FIXTURE,LIGHTING
5526
6210-00-299-4731INTERCHANGEABLE
FIXTURE,LIGHTING
6532-00-412-1658INTERCHANGEABLE
CAP,OPERATING,SURGICAL
630-010
5330-00-527-7562INTERCHANGEABLE
GASKET
4005526
3120-00-707-7004INTERCHANGEABLE
BUSHING,SLEEVE
5526
8040-01-155-5729INTERCHANGEABLE
ADHESIVE
6105-01-199-3241INTERCHANGEABLE
MOTOR,DIRECT CURRENT
55-26-2
5975-01-280-3312INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5526
6540-01-384-7292INTERCHANGEABLE
GOGGLES,PROTECTIVE,INFECTION
5526
5945-01-442-9791INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5527-ZD 1439987
7530-01-498-9211INTERCHANGEABLE
LABEL
5526
6515-01-571-8783INTERCHANGEABLE
CHUCK,QUICK COUPLING
55,26

Frequently Asked Questions

What is NSN 5120-01-399-9681?

NSN 5120-01-399-9681 is a Socket,socket Wrench, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-399-9681?

NSN 5120-01-399-9681 has 4 cross-referenced part numbers: 5526 (The Stanley Works Dba Stanley Proto), J5526 (The Stanley Works Dba Stanley Proto), 1AP41 (W.w. Grainger, Inc. Div Government Sales Division), STP 5526G (Kipper Tool Company Dba Kipper Management Inc).

What NSN replaces 5120-01-399-9681?

There are 12 known substitutes for 5120-01-399-9681: 6210-00-299-3055, 6210-00-299-4731, 6532-00-412-1658 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J5526?

Key specifications for J5526: Features Provided: MANUAL TOOL; Style Designator: INTERNAL-INTERNAL; Drive End Shape: SQUARE SINGLE END INTERNAL; Drive Surface Size: 0.750 INCHES NOMINAL SINGLE END IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-9681 still in active supply?

NSN 5120-01-399-9681 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.
PartsTable Design LLC · partstable.com