PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J5217MSocket,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-9730 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9730 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9730. Primary manufacturer part number: J5217M.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Size: 17.0 MILLIMETERS NOMINAL SINGLE END MM
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Style Designator: INTERNAL-INTERNAL
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-399-9730, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-399-9730
Primary Part NumberJ5217M
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Size17.0 MILLIMETERS NOMINAL SINGLE END MM
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Features ProvidedMANUAL TOOL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-156-476511776-17 INTERCHANGEABLE
Bearing,ball,annular
Calgon Carbon Uv Technologies Llc Dba Hyde Marine
5330-01-486-8014521-7M INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Barfield Inc
Cross-Reference Index
Part NumberManufacturer
5217M The Stanley Works Dba Stanley Proto (USA)
J5217M PRIMARY The Stanley Works Dba Stanley Proto (USA)
AS954 Sae International Dba Sae International (USA)
1AK61 W.w. Grainger, Inc. Div Government Sales Division (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
Related Parts
3110-00-156-4765INTERCHANGEABLE
BEARING,BALL,ANNULAR
11776-17
5330-01-486-8014INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
521-7M

Frequently Asked Questions

What is NSN 5120-01-399-9730?

NSN 5120-01-399-9730 is a Socket,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 5120-01-399-9730?

NSN 5120-01-399-9730 has 5 cross-referenced part numbers: 5217M (The Stanley Works Dba Stanley Proto), J5217M (The Stanley Works Dba Stanley Proto), AS954 (Sae International Dba Sae International), 1AK61 (W.w. Grainger, Inc. Div Government Sales Division), AS954 TY1CL1STA (General Services Administration Federal Supply Service).

What NSN replaces 5120-01-399-9730?

There are 2 known substitutes for 5120-01-399-9730: 3110-00-156-4765, 5330-01-486-8014. Verify interchangeability with system specifications before substitution.

What are the specifications of J5217M?

Key specifications for J5217M: Overall Length: 28.5 MILLIMETERS NOMINAL MM; Drive End Shape: SQUARE SINGLE END INTERNAL; Wrenching Surface Size: 17.0 MILLIMETERS NOMINAL SINGLE END MM; Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN. 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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