PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

STM16Socket,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-335-0956 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-0956 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-0956. Primary manufacturer part number: STM16.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive End Outside Diameter: 0.697 INCHES MAXIMUM IN
  • Wrenching End Outside Diameter: 0.697 INCHES MAXIMUM IN
  • Wrenching End Opening Depth: 0.266 INCHES MAXIMUM IN
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: 6 POINT SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-335-0956, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 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
NSN5120-01-335-0956
Primary Part NumberSTM16
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusCANCELLED
Drive End Outside Diameter0.697 INCHES MAXIMUM IN
Wrenching End Outside Diameter0.697 INCHES MAXIMUM IN
Wrenching End Opening Depth0.266 INCHES MAXIMUM IN
Features ProvidedMANUAL TOOL
Wrenching Surface Size0.500 INCHES NOMINAL SINGLE END IN
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE
Drive End ShapeSQUARE SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data05047-ASME B107.110 CAT 1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4920-00-034-642711209 INTERCHANGEABLE
Adapter Kit Assembl
Elbitamerica, Inc.
4720-00-096-682411209 INTERCHANGEABLE
Hose Assembly,nonmetallic
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5330-00-285-946128531A INTERCHANGEABLE
Seal,plain Encased
Brinkley Technology Group Llc Dba Hercules Manufacturing
4310-00-306-1322N11209 INTERCHANGEABLE
Cylinder Sleeve
Leslie Controls, Inc. Dba Leslie Controls Inc
5915-00-373-0829 INTERCHANGEABLE
Filter,low Pass
5136-00-580-7364310316 INTERCHANGEABLE
Tap,thread Cutting
Stanley Tools Div of Stanley Works
5305-00-619-4700 INTERCHANGEABLE
Screw,machine
3030-01-175-63892/3V315 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
4320-01-182-2595517-2299504 PC 9 INTERCHANGEABLE
Ring,wearing
Puget Sound Naval Shipyard and Intermediate Maintence Facility
4720-01-332-13304210101-12-12-12-42.00 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
Cross-Reference Index
Part NumberManufacturer
STM16 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
STM16 Snap-on Uk Holdings Limited (GBR)
009000317 Beta Utensili S.p.a. (ITA)
11209 Signet Tool International Co Ltd
B107.1 The American Society of Mechanical Engineers (USA)
B107.110 CAT 1 TY1 General Services Administration Federal Supply Service (USA)
2516 Wright Tool Company, Llc (USA)
B107.110 The American Society of Mechanical Engineers (USA)
B107.1 TY1CL2 General Services Administration Federal Supply Service (USA)
67683 Egamaster SL (ESP)
Related Parts
4920-00-034-6427INTERCHANGEABLE
ADAPTER KIT ASSEMBL
11209
4720-00-096-6824INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
11209
5330-00-285-9461INTERCHANGEABLE
SEAL,PLAIN ENCASED
28531A
4310-00-306-1322INTERCHANGEABLE
CYLINDER SLEEVE
N11209
5915-00-373-0829INTERCHANGEABLE
FILTER,LOW PASS
5136-00-580-7364INTERCHANGEABLE
TAP,THREAD CUTTING
310316
5305-00-619-4700INTERCHANGEABLE
SCREW,MACHINE
3030-01-175-6389INTERCHANGEABLE
BELT,V
2/3V315
4320-01-182-2595INTERCHANGEABLE
RING,WEARING
517-2299504 PC 9
4720-01-332-1330INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4210101-12-12-12-42.00
5315-01-335-0090INTERCHANGEABLE
PIN,STRAIGHT,HEADED
5120-01-430-7735INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-01-335-0956?

NSN 5120-01-335-0956 is a Socket,socket Wrench, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-335-0956?

NSN 5120-01-335-0956 has 10 cross-referenced part numbers: STM16 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), STM16 (Snap-on Uk Holdings Limited), 009000317 (Beta Utensili S.p.a.), 11209 (Signet Tool International Co Ltd), B107.1 (The American Society of Mechanical Engineers) and 5 more.

What NSN replaces 5120-01-335-0956?

There are 12 known substitutes for 5120-01-335-0956: 4920-00-034-6427, 4720-00-096-6824, 5330-00-285-9461 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of STM16?

Key specifications for STM16: Drive End Outside Diameter: 0.697 INCHES MAXIMUM IN; Wrenching End Outside Diameter: 0.697 INCHES MAXIMUM IN; Wrenching End Opening Depth: 0.266 INCHES MAXIMUM IN; Features Provided: MANUAL TOOL. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-335-0956 still in active supply?

NSN 5120-01-335-0956 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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