PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1612Adapter,socket Wrench

Stanley Industrial & Automotive Llc · NSN 5120-01-366-8220 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-366-8220 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-366-8220. Primary manufacturer part number: A1612.
Features
  • Adapter,socket Wrench — FSC 5120
  • Drive End Shape: SQUARE FIRST END INTERNAL
  • Drive Surface Size: 0.375 INCHES NOMINAL SECOND END IN
  • Material: STEEL OVERALL
  • Style Designator: EXTERNAL-INTERNAL
  • Drive Surface Size: 0.500 INCHES NOMINAL FIRST END IN
  • Features Provided: MANUAL TOOL
  • Outside Diameter: 1.125 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Adapter,socket Wrench, cataloged under National Stock Number 5120-01-366-8220, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Stanley Industrial & Automotive Llc. Government technical data includes 9 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-366-8220
Primary Part NumberA1612
Item NameAdapter,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerStanley Industrial & Automotive Llc
StatusACTIVE
Drive End ShapeSQUARE FIRST END INTERNAL
Drive Surface Size0.375 INCHES NOMINAL SECOND END IN
MaterialSTEEL OVERALL
Style DesignatorEXTERNAL-INTERNAL
Drive Surface Size0.500 INCHES NOMINAL FIRST END IN
Features ProvidedMANUAL TOOL
Outside Diameter1.125 INCHES MAXIMUM IN
Surface TreatmentCHROMIUM OVERALL
Drive End ShapeSQUARE SECOND END EXTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3455-00-231-352209510 INTERCHANGEABLE
Cutter,milling,shell End
Niagara Cutter Inc
5830-00-358-3615A1612 INTERCHANGEABLE
Intercommunication Station
Danfoss Inc
5940-00-859-9638A1612 INTERCHANGEABLE
Terminal,angle
Kelly Manufacturing Company
5935-01-261-3969 INTERCHANGEABLE
Connector,receptacle,electrical
8455-01-528-9465 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-664-2624 INTERCHANGEABLE
Insignia,shoulder Sleeve
3020-01-699-5362A1612 INTERCHANGEABLE
Gear,worm
Thern Inc
8455-01-713-6025 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-713-6028 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
A1612 PRIMARY Stanley Industrial & Automotive Llc (USA)
Related Parts
3455-00-231-3522INTERCHANGEABLE
CUTTER,MILLING,SHELL END
09510
5830-00-358-3615INTERCHANGEABLE
INTERCOMMUNICATION STATION
A1612
5940-00-859-9638INTERCHANGEABLE
TERMINAL,ANGLE
A1612
5935-01-261-3969INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
8455-01-528-9465INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-664-2624INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
3020-01-699-5362INTERCHANGEABLE
GEAR,WORM
A1612
8455-01-713-6025INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-713-6028INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 5120-01-366-8220?

NSN 5120-01-366-8220 is a Adapter,socket Wrench, manufactured by Stanley Industrial & Automotive Llc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-366-8220?

NSN 5120-01-366-8220 has 1 cross-referenced part number: A1612 (Stanley Industrial & Automotive Llc).

What NSN replaces 5120-01-366-8220?

There are 9 known substitutes for 5120-01-366-8220: 3455-00-231-3522, 5830-00-358-3615, 5940-00-859-9638 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A1612?

Key specifications for A1612: Drive End Shape: SQUARE FIRST END INTERNAL; Drive Surface Size: 0.375 INCHES NOMINAL SECOND END IN; Overall Length: 1.438 INCHES NOMINAL IN; Material: STEEL 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