PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.9MWrench,open End

The American Society of Mechanical Engineers · NSN 5120-00-737-7963 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-737-7963 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-737-7963. Primary manufacturer part number: B107.9M.
Features
  • Wrench,open End — FSC 5120
  • Small End Head Thickness: 10.1 MILLIMETERS NOMINAL MM
  • Specification/standard Data: 05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Style Designator: DOUBLE HEAD
  • Large End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 20.0 MILLIMETERS NOMINAL FIRST END MM
  • Small End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 22.0 MILLIMETERS NOMINAL SECOND END MM
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-737-7963, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 12 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-737-7963
Primary Part NumberB107.9M
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusACTIVE
Small End Head Thickness10.1 MILLIMETERS NOMINAL MM
Specification/standard Data05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorDOUBLE HEAD
Large End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size20.0 MILLIMETERS NOMINAL FIRST END MM
Small End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size22.0 MILLIMETERS NOMINAL SECOND END MM
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
MaterialSTEEL OVERALL
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Large End Head Thickness10.1 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5895-01-368-1334 INTERCHANGEABLE
Encoder-Decoder,communications E
Cross-Reference Index
Part NumberManufacturer
B107.9M The American Society of Mechanical Engineers (USA)
A1-9252 Philips Electronic Instruments Inc (USA)
B107.100 The American Society of Mechanical Engineers (USA)
VSM2022 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.39 The American Society of Mechanical Engineers (USA)
B107.39 TY1CL1 General Services Administration Federal Supply Service (USA)
Related Parts
5895-01-368-1334INTERCHANGEABLE
ENCODER-DECODER,COMMUNICATIONS E

Frequently Asked Questions

What is NSN 5120-00-737-7963?

NSN 5120-00-737-7963 is a Wrench,open End, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-737-7963?

NSN 5120-00-737-7963 has 6 cross-referenced part numbers: B107.9M (The American Society of Mechanical Engineers), A1-9252 (Philips Electronic Instruments Inc), B107.100 (The American Society of Mechanical Engineers), VSM2022 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B107.39 (The American Society of Mechanical Engineers) and 1 more.

What NSN replaces 5120-00-737-7963?

There is 1 known substitute for 5120-00-737-7963: 5895-01-368-1334. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.9M?

Key specifications for B107.9M: Small End Head Thickness: 10.1 MILLIMETERS NOMINAL MM; Specification/standard Data: 05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Style Designator: DOUBLE HEAD; Large End Head Angle: 15.0 DEGREES NOMINAL. 13 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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