PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J4766Handle,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-9516 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9516 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9516. Primary manufacturer part number: J4766.
Features
  • Handle,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Drive End Shape: SQUARE SINGLE END EXTERNAL
  • Style Designator: HINGED
  • Specification/standard Data: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
Applications
  • Applications requiring Steel Overall construction
General Description

The Handle,socket Wrench, cataloged under National Stock Number 5120-01-399-9516, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-399-9516
Primary Part NumberJ4766
Item NameHandle,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
MaterialSTEEL OVERALL
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Drive End ShapeSQUARE SINGLE END EXTERNAL
Style DesignatorHINGED
Specification/standard Data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5930-00-503-488410370EB INTERCHANGEABLE
Switch,pressure
Tld Wollard Llc
2040-00-896-67404766 INTERCHANGEABLE
Casting,stadimeter
L3 Technologies, Inc. Div L3 Keo
5325-01-022-3526 INTERCHANGEABLE
Ring,retaining
5999-01-133-37354766 INTERCHANGEABLE
Cap,electrical
Hoyt Corporation
3040-01-167-2973 INTERCHANGEABLE
Plate,retaining,shaft
5920-01-302-04214766 INTERCHANGEABLE
Fuseholder,block
Cole Hersee Company
Cross-Reference Index
Part NumberManufacturer
J4766 The Stanley Works Dba Stanley Proto (USA)
B107.10M TY1CL1 General Services Administration Federal Supply Service (USA)
B107.10M The American Society of Mechanical Engineers (USA)
AS4283 Sae International Dba Sae International (USA)
AS4283 TY1CL1 General Services Administration Federal Supply Service (USA)
AS4283 Society of Automotive Engineers Inc (USA)
4766 The Stanley Works Dba Stanley Proto (USA)
1AF43 W.w. Grainger, Inc. Div Government Sales Division (USA)
Related Parts
5930-00-503-4884INTERCHANGEABLE
SWITCH,PRESSURE
10370EB
2040-00-896-6740INTERCHANGEABLE
CASTING,STADIMETER
4766
5325-01-022-3526INTERCHANGEABLE
RING,RETAINING
5999-01-133-3735INTERCHANGEABLE
CAP,ELECTRICAL
4766
3040-01-167-2973INTERCHANGEABLE
PLATE,RETAINING,SHAFT
5920-01-302-0421INTERCHANGEABLE
FUSEHOLDER,BLOCK
4766

Frequently Asked Questions

What is NSN 5120-01-399-9516?

NSN 5120-01-399-9516 is a Handle,socket Wrench, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-399-9516?

NSN 5120-01-399-9516 has 8 cross-referenced part numbers: J4766 (The Stanley Works Dba Stanley Proto), B107.10M TY1CL1 (General Services Administration Federal Supply Service), B107.10M (The American Society of Mechanical Engineers), AS4283 (Sae International Dba Sae International), AS4283 TY1CL1 (General Services Administration Federal Supply Service) and 3 more.

What NSN replaces 5120-01-399-9516?

There are 6 known substitutes for 5120-01-399-9516: 5930-00-503-4884, 2040-00-896-6740, 5325-01-022-3526 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J4766?

Key specifications for J4766: Overall Length: 4.90 INCHES MINIMUM AND 6.20 INCHES MAXIMUM IN; Special Features: STRAIGHT ROUND KNURLED STEEL HANDLE; Material: STEEL OVERALL; Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN. 9 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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