PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81AD083-LAdapter,socket Wrench Extension

Giga, Inc. · NSN 5120-01-371-3787 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-371-3787 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-371-3787. Primary manufacturer part number: 81AD083-L.
Features
  • Adapter,socket Wrench Extension — FSC 5120
  • General Characteristics Item Description: FOR 1/4 IN. SQ DRIVE EXTENSIONS; ATTACHES TO EXTENSION WITH SETSCREW; PROVIDES EXTRA HOLDING POWER FOR SOCKETS AND EXTENDS LIFE OF EXTENSION IN
  • 3 verified cross-references
  • Primary manufacturer: Giga, Inc.
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Adapter,socket Wrench Extension, cataloged under National Stock Number 5120-01-371-3787, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Giga, Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-371-3787
Primary Part Number81AD083-L
Item NameAdapter,socket Wrench Extension
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGiga, Inc.
StatusACTIVE
General Characteristics Item DescriptionFOR 1/4 IN. SQ DRIVE EXTENSIONS; ATTACHES TO EXTENSION WITH SETSCREW; PROVIDES EXTRA HOLDING POWER FOR SOCKETS AND EXTENDS LIFE OF EXTENSION IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5120-01-591-8341J4759BLS INTERCHANGEABLE
Adapter,socket Wrench
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
J4759BLS Wright Tool Company, Llc (USA)
81AD083-L PRIMARY Giga, Inc. (USA)
140102S QUALICORP LTD Dynamic Design Products Inc (USA)
Related Parts
5120-01-591-8341INTERCHANGEABLE
ADAPTER,SOCKET WRENCH
J4759BLS

Frequently Asked Questions

What is NSN 5120-01-371-3787?

NSN 5120-01-371-3787 is a Adapter,socket Wrench Extension, manufactured by Giga, Inc., classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-371-3787?

NSN 5120-01-371-3787 has 3 cross-referenced part numbers: J4759BLS (Wright Tool Company, Llc), 81AD083-L (Giga, Inc.), 140102S QUALICORP LTD (Dynamic Design Products Inc).

What NSN replaces 5120-01-371-3787?

There is 1 known substitute for 5120-01-371-3787: 5120-01-591-8341. Verify interchangeability with system specifications before substitution.

What are the specifications of 81AD083-L?

Key specifications for 81AD083-L: General Characteristics Item Description: FOR 1/4 IN. SQ DRIVE EXTENSIONS; ATTACHES TO EXTENSION WITH SETSCREW; PROVIDES EXTRA HOLDING POWER FOR SOCKETS AND EXTENDS LIFE OF EXTENSION IN. 1 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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