PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS955Wrench,box and Open End,combinat

Society of Automotive Engineers Inc · NSN 5120-01-398-9136 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-398-9136 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-398-9136. Primary manufacturer part number: AS955.
Features
  • Wrench,box and Open End,combinat — FSC 5120
  • Style Designator: OFFSET
  • Nondefinitive Spec/std Data: 3 TYPE AND 1 CLASS AND C STYLE
  • Surface Treatment: CHROMIUM OVERALL
  • Specification/standard Data: 81343-SAE AS955 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Shape: 12 POINT SECOND END INTERNAL
  • Material: STEEL OVERALL
  • Wrenching End Offset Angle: 15.0 DEGREES NOMINAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-01-398-9136, 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 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-398-9136
Primary Part NumberAS955
Item NameWrench,box and Open End,combinat
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSociety of Automotive Engineers Inc
StatusACTIVE
Style DesignatorOFFSET
Nondefinitive Spec/std Data3 TYPE AND 1 CLASS AND C STYLE
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data81343-SAE AS955 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Shape12 POINT SECOND END INTERNAL
MaterialSTEEL OVERALL
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Wrenching Surface Size25.0 MILLIMETERS NOMINAL BOTH ENDS MM
Head Angle15.0 DEGREES NOMINAL
Wrenching Surface ShapeOVAL FIRST END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6625-00-921-703494293-1 INTERCHANGEABLE
Cable Assy,electric
Microwave Engineering Corporation
9540-01-071-3518 INTERCHANGEABLE
Beam,structural
5950-01-156-7439668-0516-010 INTERCHANGEABLE
Coil,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
4820-01-278-568942931G INTERCHANGEABLE
Guide,valve Stem
Griswold Industries Dba Cla-Val Co
Cross-Reference Index
Part NumberManufacturer
AS955 Society of Automotive Engineers Inc (USA)
B107.100 The American Society of Mechanical Engineers (USA)
9-42931 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
AS955 Sae International Dba Sae International (USA)
B107.6 The American Society of Mechanical Engineers (USA)
42931 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
B107.6 TY1 General Services Administration Federal Supply Service (USA)
00942931000 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
AS955 TY3CL1STC General Services Administration Federal Supply Service (USA)
Related Parts
6625-00-921-7034INTERCHANGEABLE
CABLE ASSY,ELECTRIC
94293-1
9540-01-071-3518INTERCHANGEABLE
BEAM,STRUCTURAL
5950-01-156-7439INTERCHANGEABLE
COIL,RADIO FREQUENCY
668-0516-010
4820-01-278-5689INTERCHANGEABLE
GUIDE,VALVE STEM
42931G

Frequently Asked Questions

What is NSN 5120-01-398-9136?

NSN 5120-01-398-9136 is a Wrench,box and Open End,combinat, manufactured by Society of Automotive Engineers Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-398-9136?

NSN 5120-01-398-9136 has 9 cross-referenced part numbers: AS955 (Society of Automotive Engineers Inc), B107.100 (The American Society of Mechanical Engineers), 9-42931 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), AS955 (Sae International Dba Sae International), B107.6 (The American Society of Mechanical Engineers) and 4 more.

What NSN replaces 5120-01-398-9136?

There are 4 known substitutes for 5120-01-398-9136: 6625-00-921-7034, 9540-01-071-3518, 5950-01-156-7439 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS955?

Key specifications for AS955: Style Designator: OFFSET; Nondefinitive Spec/std Data: 3 TYPE AND 1 CLASS AND C STYLE; Surface Treatment: CHROMIUM OVERALL; Specification/standard Data: 81343-SAE AS955 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 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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