PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J5558Socket,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-652-1458 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-652-1458 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-652-1458. Primary manufacturer part number: J5558.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching Surface Size: 1.812 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Drive Surface Size: 0.750 INCHES NOMINAL SINGLE END IN
  • Style Designator: INTERNAL-INTERNAL
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-652-1458, 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 1 commercial cross-reference from 1 manufacturer, 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
NSN5120-01-652-1458
Primary Part NumberJ5558
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
Wrenching Surface Size1.812 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Features ProvidedMANUAL TOOL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Drive Surface Size0.750 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5120-01-399-9695 INTERCHANGEABLE
Socket,socket Wrench
5120-01-648-5015J5558 INTERCHANGEABLE
Socket,socket Wrench
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
J5558 The Stanley Works Dba Stanley Proto (USA)
Related Parts
5120-01-399-9695INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-01-648-5015INTERCHANGEABLE
SOCKET,SOCKET WRENCH
J5558

Frequently Asked Questions

What is NSN 5120-01-652-1458?

NSN 5120-01-652-1458 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 5120-01-652-1458?

NSN 5120-01-652-1458 has 1 cross-referenced part number: J5558 (The Stanley Works Dba Stanley Proto).

What NSN replaces 5120-01-652-1458?

There are 2 known substitutes for 5120-01-652-1458: 5120-01-399-9695, 5120-01-648-5015. Verify interchangeability with system specifications before substitution.

What are the specifications of J5558?

Key specifications for J5558: Overall Length: 2.906 INCHES NOMINAL IN; End Item Identification: SATS; Wrenching Surface Size: 1.812 INCHES NOMINAL SINGLE END IN; Surface Treatment: CHROMIUM OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com