PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS954Socket,socket Wrench

Society of Automotive Engineers Inc · NSN 5120-01-399-9489 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9489 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9489. Primary manufacturer part number: AS954.
Features
  • Socket,socket Wrench — FSC 5120
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Surface Treatment: CHROMIUM OVERALL
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Style Designator: INTERNAL-INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-399-9489, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-399-9489
Primary Part NumberAS954
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
Features ProvidedMANUAL TOOL
Wrenching Surface Size0.375 INCHES NOMINAL SINGLE END IN
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Surface TreatmentCHROMIUM OVERALL
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
MaterialSTEEL OVERALL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
6615-00-235-751043912 INTERCHANGEABLE
Rotor Assembly,gyroscope
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5305-01-219-911002071 INTERCHANGEABLE
Thumbscrew
Defense Logistics Agency Dba Defense Supply Center Philadelphia
3010-01-587-717243912 INTERCHANGEABLE
Sleeve,coupling,flexible
Moog Inc. Dba Ampac-Isp Corp
6110-01-592-888943912 INTERCHANGEABLE
Panel,power Distribution
Westerbeke Corporation
Cross-Reference Index
Part NumberManufacturer
AS954 Society of Automotive Engineers Inc (USA)
4712T The Stanley Works Dba Stanley Proto (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
J4712T The Stanley Works Dba Stanley Proto (USA)
B107.1 TY1CL1 General Services Administration Federal Supply Service (USA)
J4712T Henchman Group Pty Ltd the Trustee for Henchman Unit Trust (AUS)
43912 S K Hand Tool Corp (USA)
AS954 Sae International Dba Sae International (USA)
J4712T Henchman Products Pty Ltd (AUS)
B107.1 The American Society of Mechanical Engineers (USA)
1AF74 W.w. Grainger, Inc. Div Government Sales Division (USA)
Related Parts
6615-00-235-7510INTERCHANGEABLE
ROTOR ASSEMBLY,GYROSCOPE
43912
5305-01-219-9110INTERCHANGEABLE
THUMBSCREW
02071
3010-01-587-7172INTERCHANGEABLE
SLEEVE,COUPLING,FLEXIBLE
43912
6110-01-592-8889INTERCHANGEABLE
PANEL,POWER DISTRIBUTION
43912

Frequently Asked Questions

What is NSN 5120-01-399-9489?

NSN 5120-01-399-9489 is a Socket,socket Wrench, manufactured by Society of Automotive Engineers Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-399-9489?

NSN 5120-01-399-9489 has 11 cross-referenced part numbers: AS954 (Society of Automotive Engineers Inc), 4712T (The Stanley Works Dba Stanley Proto), AS954 TY1CL1STA (General Services Administration Federal Supply Service), J4712T (The Stanley Works Dba Stanley Proto), B107.1 TY1CL1 (General Services Administration Federal Supply Service) and 6 more.

What NSN replaces 5120-01-399-9489?

There are 4 known substitutes for 5120-01-399-9489: 6615-00-235-7510, 5305-01-219-9110, 3010-01-587-7172 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS954?

Key specifications for AS954: Features Provided: MANUAL TOOL; Wrenching Surface Size: 0.375 INCHES NOMINAL SINGLE END IN; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE; Surface Treatment: CHROMIUM OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-9489 still in active supply?

NSN 5120-01-399-9489 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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