PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS954 TY1CL1STASocket,socket Wrench

General Services Administration Federal Supply Service · NSN 5120-01-399-9540 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9540 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9540. Primary manufacturer part number: AS954 TY1CL1STA.
Features
  • Socket,socket Wrench — FSC 5120
  • Specification/standard Data: 81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Features Provided: MANUAL TOOL
  • Material: STEEL OVERALL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-399-9540, 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 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-399-9540
Primary Part NumberAS954 TY1CL1STA
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Specification/standard Data81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Features ProvidedMANUAL TOOL
MaterialSTEEL OVERALL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
Wrenching Surface Size0.688 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-156-53965222 INTERCHANGEABLE
Bearing,ball,annular
Federal-Mogul Corp Government Sales Dept
3110-00-156-7997 INTERCHANGEABLE
Bearing,ball,annular
5340-00-163-2639 INTERCHANGEABLE
Handle,bail
4510-00-273-1220 INTERCHANGEABLE
Handle,faucet
5975-00-482-2664HBL5222 INTERCHANGEABLE
Plate,wall,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5330-00-765-2915G8-055041 INTERCHANGEABLE
Gasket
Norwalk Compreseer Company Inc Dba Norwalk Compressor Company
4730-00-849-0552 INTERCHANGEABLE
Strainer Element,sediment
4130-01-018-8225714975-1 INTERCHANGEABLE
Boot,air Conditioning
Raytheon Company Div Rmd Strategic
2530-01-123-87904271395 INTERCHANGEABLE
Caliper,disc Brake
Chrysler Corp Service and Parts Opns
6540-01-158-360652-22 INTERCHANGEABLE
Front,spectacle
Square D Co Monroe Plant
Cross-Reference Index
Part NumberManufacturer
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
J5222 The Stanley Works Dba Stanley Proto (USA)
J5222 Henchman Products Pty Ltd (AUS)
J5222 Henchman Group Pty Ltd the Trustee for Henchman Unit Trust (AUS)
5222 The Stanley Works Dba Stanley Proto (USA)
AS954 Society of Automotive Engineers Inc (USA)
1AK12 W.w. Grainger, Inc. Div Government Sales Division (USA)
AS954 Sae International Dba Sae International (USA)
Related Parts
3110-00-156-5396INTERCHANGEABLE
BEARING,BALL,ANNULAR
5222
3110-00-156-7997INTERCHANGEABLE
BEARING,BALL,ANNULAR
5340-00-163-2639INTERCHANGEABLE
HANDLE,BAIL
4510-00-273-1220INTERCHANGEABLE
HANDLE,FAUCET
5975-00-482-2664INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
HBL5222
5330-00-765-2915INTERCHANGEABLE
GASKET
G8-055041
4730-00-849-0552INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
4130-01-018-8225INTERCHANGEABLE
BOOT,AIR CONDITIONING
714975-1
2530-01-123-8790INTERCHANGEABLE
CALIPER,DISC BRAKE
4271395
6540-01-158-3606INTERCHANGEABLE
FRONT,SPECTACLE
52-22
3820-01-537-2492INTERCHANGEABLE
DRILL ROD,ROCK DRILL
5222
6625-01-571-6897INTERCHANGEABLE
MONITOR,WAVEFORM
5222

Frequently Asked Questions

What is NSN 5120-01-399-9540?

NSN 5120-01-399-9540 is a Socket,socket Wrench, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-399-9540?

NSN 5120-01-399-9540 has 8 cross-referenced part numbers: AS954 TY1CL1STA (General Services Administration Federal Supply Service), J5222 (The Stanley Works Dba Stanley Proto), J5222 (Henchman Products Pty Ltd), J5222 (Henchman Group Pty Ltd the Trustee for Henchman Unit Trust), 5222 (The Stanley Works Dba Stanley Proto) and 3 more.

What NSN replaces 5120-01-399-9540?

There are 12 known substitutes for 5120-01-399-9540: 3110-00-156-5396, 3110-00-156-7997, 5340-00-163-2639 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS954 TY1CL1STA?

Key specifications for AS954 TY1CL1STA: Specification/standard Data: 81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Surface Treatment: CHROMIUM OVERALL; Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE. 11 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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