PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32521Socket,socket Wrench

Williams J H Industrial Products Inc · NSN 5120-01-348-9040 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-348-9040 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-348-9040. Primary manufacturer part number: 32521.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching Surface Size: 21.0 MILLIMETERS NOMINAL SINGLE END MM
  • Specification/standard Data: 05047-ASME B107.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Features Provided: MANUAL TOOL
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-348-9040, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Williams J H Industrial Products Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-348-9040
Primary Part Number32521
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerWilliams J H Industrial Products Inc
StatusCANCELLED
Wrenching Surface Size21.0 MILLIMETERS NOMINAL SINGLE END MM
Specification/standard Data05047-ASME B107.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Features ProvidedMANUAL TOOL
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5950-00-645-4711SM-D-282251-9 INTERCHANGEABLE
Transformer,power
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-823-487832521 INTERCHANGEABLE
Packing,preformed
Allianz Sweeper Company
5962-01-364-54313252-1 INTERCHANGEABLE
Microcircuit,memory
Trig-Tek, Incorporated
5120-01-627-1981 INTERCHANGEABLE
Socket,socket Wrench
6545-01-666-159432521 INTERCHANGEABLE
Medical Equipment Set,recruit Ph
Lafayette Instrument Company, Llc
Cross-Reference Index
Part NumberManufacturer
32521 Noble Supply & Logistics, Llc (USA)
32521 PRIMARY Williams J H Industrial Products Inc (USA)
5421MH The Stanley Works Dba Stanley Proto (USA)
B107.5 The American Society of Mechanical Engineers (USA)
J5421MH The Stanley Works Dba Stanley Proto (USA)
TWM21 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.5 TY1CL1 General Services Administration Federal Supply Service (USA)
5F468 W.w. Grainger, Inc. Div Government Sales Division (USA)
ZHVY0291 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
5950-00-645-4711INTERCHANGEABLE
TRANSFORMER,POWER
SM-D-282251-9
5330-00-823-4878INTERCHANGEABLE
PACKING,PREFORMED
32521
5962-01-364-5431INTERCHANGEABLE
MICROCIRCUIT,MEMORY
3252-1
5120-01-627-1981INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6545-01-666-1594INTERCHANGEABLE
MEDICAL EQUIPMENT SET,RECRUIT PH
32521

Frequently Asked Questions

What is NSN 5120-01-348-9040?

NSN 5120-01-348-9040 is a Socket,socket Wrench, manufactured by Williams J H Industrial Products Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-348-9040?

NSN 5120-01-348-9040 has 9 cross-referenced part numbers: 32521 (Noble Supply & Logistics, Llc), 32521 (Williams J H Industrial Products Inc), 5421MH (The Stanley Works Dba Stanley Proto), B107.5 (The American Society of Mechanical Engineers), J5421MH (The Stanley Works Dba Stanley Proto) and 4 more.

What NSN replaces 5120-01-348-9040?

There are 5 known substitutes for 5120-01-348-9040: 5950-00-645-4711, 5330-00-823-4878, 5962-01-364-5431 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 32521?

Key specifications for 32521: Wrenching Surface Size: 21.0 MILLIMETERS NOMINAL SINGLE END MM; Specification/standard Data: 05047-ASME B107.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN; Surface Treatment: CHROMIUM OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-348-9040 still in active supply?

NSN 5120-01-348-9040 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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