PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GF101Socket,socket Wrench

Tecno Trade S.r.l. · NSN 5120-01-437-1729 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-437-1729 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-437-1729. Primary manufacturer part number: GF101.
Features
  • Socket,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Style Designator: INTERNAL-INTERNAL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Size: 0.312 INCHES NOMINAL SINGLE END IN
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Surface Treatment: OXIDE OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-437-1729, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Tecno Trade S.r.l.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-437-1729
Primary Part NumberGF101
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerTecno Trade S.r.l.
StatusCANCELLED
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size0.312 INCHES NOMINAL SINGLE END IN
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface TreatmentOXIDE OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Features ProvidedMANUAL TOOL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3120-01-012-559618832-5 INTERCHANGEABLE
Bushing,sleeve
Northrop Grumman Systems Corporation
Cross-Reference Index
Part NumberManufacturer
GF101 Tecno Trade S.r.l. (ITA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
AS954 Sae International Dba Sae International (USA)
GF101 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS954 Society of Automotive Engineers Inc (USA)
Related Parts
3120-01-012-5596INTERCHANGEABLE
BUSHING,SLEEVE
18832-5

Frequently Asked Questions

What is NSN 5120-01-437-1729?

NSN 5120-01-437-1729 is a Socket,socket Wrench, manufactured by Tecno Trade S.r.l., classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-437-1729?

NSN 5120-01-437-1729 has 5 cross-referenced part numbers: GF101 (Tecno Trade S.r.l.), AS954 TY1CL1STA (General Services Administration Federal Supply Service), AS954 (Sae International Dba Sae International), GF101 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AS954 (Society of Automotive Engineers Inc).

What NSN replaces 5120-01-437-1729?

There is 1 known substitute for 5120-01-437-1729: 3120-01-012-5596. Verify interchangeability with system specifications before substitution.

What are the specifications of GF101?

Key specifications for GF101: Material: STEEL OVERALL; Drive End Shape: SQUARE SINGLE END INTERNAL; Style Designator: INTERNAL-INTERNAL; Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-437-1729 still in active supply?

NSN 5120-01-437-1729 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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