PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS954Socket,socket Wrench

Society of Automotive Engineers Inc · NSN 5120-00-235-5878 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-235-5878 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-235-5878. Primary manufacturer part number: AS954.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Style Designator: INTERNAL-INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Features Provided: MANUAL TOOL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-235-5878, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-235-5878
Primary Part NumberAS954
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Style DesignatorINTERNAL-INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Features ProvidedMANUAL TOOL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size0.312 INCHES NOMINAL SINGLE END IN
Specification/standard Data81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Special Markings5/16 IN. IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-018-1553 INTERCHANGEABLE
Socket,socket Wrench
5120-00-082-8526 INTERCHANGEABLE
Socket,socket Wrench
3010-00-135-5409AA1407 INTERCHANGEABLE
Clutch Assembly,friction
Simmonds Precision Products Inc
5905-00-137-0876 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5120-00-189-8609 INTERCHANGEABLE
Socket,socket Wrench
5120-00-189-8610 INTERCHANGEABLE
Socket,socket Wrench
5120-00-221-182810-T INTERCHANGEABLE
Clamp,brake Lining
Star Machine & Tool Co Dba Star Brakes
5120-00-227-6702 INTERCHANGEABLE
Socket,socket Wrench
5120-00-227-6703 INTERCHANGEABLE
Socket,socket Wrench
5120-00-235-5828 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
AS954 Society of Automotive Engineers Inc (USA)
D3121-4710T Ryeson Corporation Div Sturtevant Richmont (USA)
B107.1 CL1STA General Services Administration Federal Supply Service (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
1650834 International Business Machines Corporation Dba IBM (USA)
B107.1 The American Society of Mechanical Engineers (USA)
10T Thorsen Tool Co Sub of Wallace-Murray Corp (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AS954 Sae International Dba Sae International (USA)
A-A-1407 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B107.1 TY1CL1 General Services Administration Federal Supply Service (USA)
XWS2149 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
M1210 Ducommun Metals Co (USA)
NM1210 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
Related Parts
5120-00-018-1553INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-082-8526INTERCHANGEABLE
SOCKET,SOCKET WRENCH
3010-00-135-5409INTERCHANGEABLE
CLUTCH ASSEMBLY,FRICTION
AA1407
5905-00-137-0876INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5120-00-189-8609INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-189-8610INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-221-1828INTERCHANGEABLE
CLAMP,BRAKE LINING
10-T
5120-00-227-6702INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-227-6703INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-235-5828INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-235-5869INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5940-00-239-9033INTERCHANGEABLE
SPLICE,CONDUCTOR
40H

Frequently Asked Questions

What is NSN 5120-00-235-5878?

NSN 5120-00-235-5878 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 5120-00-235-5878?

NSN 5120-00-235-5878 has 14 cross-referenced part numbers: AS954 (Society of Automotive Engineers Inc), D3121-4710T (Ryeson Corporation Div Sturtevant Richmont), B107.1 CL1STA (General Services Administration Federal Supply Service), AS954 TY1CL1STA (General Services Administration Federal Supply Service), 1650834 (International Business Machines Corporation Dba IBM) and 9 more.

What NSN replaces 5120-00-235-5878?

There are 12 known substitutes for 5120-00-235-5878: 5120-00-018-1553, 5120-00-082-8526, 3010-00-135-5409 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS954?

Key specifications for AS954: Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN; Style Designator: INTERNAL-INTERNAL; Drive End Shape: SQUARE SINGLE END INTERNAL; Material: STEEL OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-235-5878 still in active supply?

NSN 5120-00-235-5878 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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