PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS954 TY1CL2Socket,socket Wrench

General Services Administration Federal Supply Service · NSN 5120-01-399-9742 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9742 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9742. Primary manufacturer part number: AS954 TY1CL2.
Features
  • Socket,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Wrenching Surface Size: 0.562 INCHES NOMINAL SINGLE END IN
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Features Provided: MANUAL TOOL
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-399-9742, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is General Services Administration Federal Supply Service. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-399-9742
Primary Part NumberAS954 TY1CL2
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
MaterialSTEEL OVERALL
Wrenching Surface Size0.562 INCHES NOMINAL SINGLE END IN
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS
Drive End ShapeSQUARE SINGLE END INTERNAL
Style DesignatorUNIVERSAL JOINT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5330-00-146-7447 INTERCHANGEABLE
Gasket
5330-00-285-134665X549 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
9540-00-287-9426 INTERCHANGEABLE
Channel,structural
3030-00-528-3762 INTERCHANGEABLE
Belt,v
6625-00-605-8993 INTERCHANGEABLE
Cap,grounding Wire
3120-00-662-43385276 INTERCHANGEABLE
Bearing,sleeve
Circor Aerospace, Inc. Div Circor
5935-00-672-9170209 INTERCHANGEABLE
Connector,plug,electrical
Cooper Wiring Devices Inc.
5935-01-029-89502139-06 INTERCHANGEABLE
Connector,receptacle,electrical
Molex, Llc
Cross-Reference Index
Part NumberManufacturer
AS954 TY1CL2 General Services Administration Federal Supply Service (USA)
AS954 Society of Automotive Engineers Inc (USA)
J5276 The Stanley Works Dba Stanley Proto (USA)
AS954 Sae International Dba Sae International (USA)
5276 The Stanley Works Dba Stanley Proto (USA)
STP 5276A Kipper Tool Company Dba Kipper Management Inc (USA)
J5276A The Stanley Works Dba Stanley Proto (USA)
1AL33 W.w. Grainger, Inc. Div Government Sales Division (USA)
Related Parts
5330-00-146-7447INTERCHANGEABLE
GASKET
5330-00-285-1346INTERCHANGEABLE
SEAL,PLAIN ENCASED
65X549
9540-00-287-9426INTERCHANGEABLE
CHANNEL,STRUCTURAL
3030-00-528-3762INTERCHANGEABLE
BELT,V
6625-00-605-8993INTERCHANGEABLE
CAP,GROUNDING WIRE
3120-00-662-4338INTERCHANGEABLE
BEARING,SLEEVE
5276
5935-00-672-9170INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
209
5935-01-029-8950INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2139-06

Frequently Asked Questions

What is NSN 5120-01-399-9742?

NSN 5120-01-399-9742 is a Socket,socket Wrench, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-399-9742?

NSN 5120-01-399-9742 has 8 cross-referenced part numbers: AS954 TY1CL2 (General Services Administration Federal Supply Service), AS954 (Society of Automotive Engineers Inc), J5276 (The Stanley Works Dba Stanley Proto), AS954 (Sae International Dba Sae International), 5276 (The Stanley Works Dba Stanley Proto) and 3 more.

What NSN replaces 5120-01-399-9742?

There are 8 known substitutes for 5120-01-399-9742: 5330-00-146-7447, 5330-00-285-1346, 9540-00-287-9426 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS954 TY1CL2?

Key specifications for AS954 TY1CL2: Overall Length: 2.250 INCHES MAXIMUM IN; Material: STEEL OVERALL; Wrenching Surface Size: 0.562 INCHES NOMINAL SINGLE END IN; Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-9742 still in active supply?

NSN 5120-01-399-9742 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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