PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS954Socket,socket Wrench

Sae International Dba Sae International · NSN 5120-01-398-7818 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-398-7818 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-398-7818. Primary manufacturer part number: AS954.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE
  • Specification/standard Data: 81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Features Provided: MANUAL TOOL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-398-7818, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-398-7818
Primary Part NumberAS954
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE
Specification/standard Data81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Features ProvidedMANUAL TOOL
Wrenching Surface Size0.500 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Style DesignatorINTERNAL-INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
3110-00-100-058543312 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
3110-00-155-629686FT78 INTERCHANGEABLE
Bearing,ball,annular
Oshkosh Defense Llc
4920-00-817-5754 INTERCHANGEABLE
Module,alternating
3230-01-045-915943312 INTERCHANGEABLE
Bit,router
Porter Cable/delta
4820-01-373-759543312 INTERCHANGEABLE
Piston,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
AS954 Sae International Dba Sae International (USA)
AS954 Society of Automotive Engineers Inc (USA)
9-43312 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
00943312000 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
AS954 TY1CL1STB General Services Administration Federal Supply Service (USA)
43312 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
Related Parts
3110-00-100-0585INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
43312
3110-00-155-6296INTERCHANGEABLE
BEARING,BALL,ANNULAR
86FT78
4920-00-817-5754INTERCHANGEABLE
MODULE,ALTERNATING
3230-01-045-9159INTERCHANGEABLE
BIT,ROUTER
43312
4820-01-373-7595INTERCHANGEABLE
PISTON,VALVE
43312

Frequently Asked Questions

What is NSN 5120-01-398-7818?

NSN 5120-01-398-7818 is a Socket,socket Wrench, manufactured by Sae International Dba Sae International, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-398-7818?

NSN 5120-01-398-7818 has 6 cross-referenced part numbers: AS954 (Sae International Dba Sae International), AS954 (Society of Automotive Engineers Inc), 9-43312 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), 00943312000 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), AS954 TY1CL1STB (General Services Administration Federal Supply Service) and 1 more.

What NSN replaces 5120-01-398-7818?

There are 5 known substitutes for 5120-01-398-7818: 3110-00-100-0585, 3110-00-155-6296, 4920-00-817-5754 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS954?

Key specifications for AS954: Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL; Drive End Shape: SQUARE SINGLE END INTERNAL; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE; Specification/standard Data: 81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-398-7818 still in active supply?

NSN 5120-01-398-7818 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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