PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS955Socket,socket Wrench

Sae International Dba Sae International · NSN 5120-00-263-4143 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-263-4143 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-263-4143. Primary manufacturer part number: AS955.
Features
  • Socket,socket Wrench — FSC 5120
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Features Provided: MANUAL TOOL
  • Style Designator: INTERNAL-INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-263-4143, 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 14 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-263-4143
Primary Part NumberAS955
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL
Style DesignatorINTERNAL-INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MaterialSTEEL OVERALL
Wrenching Surface Size17.0 MILLIMETERS NOMINAL SINGLE END MM
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
2805-00-278-190739117A INTERCHANGEABLE
Ring,piston
Brinkley Technology Group Llc Dba Hercules Manufacturing
5120-01-348-9078 INTERCHANGEABLE
Socket,socket Wrench
5120-01-661-8416SWM171 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
AS955 Sae International Dba Sae International (USA)
B107.5M CL1STA General Services Administration Federal Supply Service (USA)
39-117A Armstrong Bros Tool Co (USA)
B107.5M TY1CL1 General Services Administration Federal Supply Service (USA)
SWM171 Sna Germany Gmbh (DEU)
AS955 Society of Automotive Engineers Inc (USA)
0738 1502 Blackwood J. Blackwood & Son Pty Ltd (AUS)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
MA-17 Utica Tool Co Inc (USA)
AS955 TY1CL1STA General Services Administration Federal Supply Service (USA)
AS954 Sae International Dba Sae International (USA)
B107.5M The American Society of Mechanical Engineers (USA)
39-117A Apex Tool Group, Llc Dba Nicholson (USA)
32417-08 Utica Tool Co Inc (USA)
Related Parts
2805-00-278-1907INTERCHANGEABLE
RING,PISTON
39117A
5120-01-348-9078INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-01-661-8416INTERCHANGEABLE
SOCKET,SOCKET WRENCH
SWM171

Frequently Asked Questions

What is NSN 5120-00-263-4143?

NSN 5120-00-263-4143 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 5120-00-263-4143?

NSN 5120-00-263-4143 has 14 cross-referenced part numbers: AS955 (Sae International Dba Sae International), B107.5M CL1STA (General Services Administration Federal Supply Service), 39-117A (Armstrong Bros Tool Co), B107.5M TY1CL1 (General Services Administration Federal Supply Service), SWM171 (Sna Germany Gmbh) and 9 more.

What NSN replaces 5120-00-263-4143?

There are 3 known substitutes for 5120-00-263-4143: 2805-00-278-1907, 5120-01-348-9078, 5120-01-661-8416. Verify interchangeability with system specifications before substitution.

What are the specifications of AS955?

Key specifications for AS955: Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN; Special Features: TEST LOAD 3600 IN-LB MIN IN; Features Provided: MANUAL TOOL; Style Designator: INTERNAL-INTERNAL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-263-4143 still in active supply?

NSN 5120-00-263-4143 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.
PartsTable Design LLC · partstable.com