PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.100Wrench,open End

The American Society of Mechanical Engineers · NSN 5120-00-277-2307 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-277-2307 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-277-2307. Primary manufacturer part number: B107.100.
Features
  • Wrench,open End — FSC 5120
  • Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
  • Large End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 0.312 INCHES NOMINAL FIRST END IN
  • Small End Head Thickness: 0.203 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Specification/standard Data: 05047-ASME B107.100/B107.39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-277-2307, 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 13 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-277-2307
Primary Part NumberB107.100
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Large End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size0.312 INCHES NOMINAL FIRST END IN
Small End Head Thickness0.203 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Specification/standard Data05047-ASME B107.100/B107.39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Small End Head Angle15.0 DEGREES NOMINAL
Surface TreatmentCHROMIUM OVERALL
Large End Head Thickness0.203 INCHES MAXIMUM IN
Style DesignatorDOUBLE HEAD
Wrenching Surface Size0.375 INCHES NOMINAL SECOND END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4310-00-344-0815487159PC11 INTERCHANGEABLE
Ring,piston
Naval Sea Systems Command
2815-00-362-17469167Y INTERCHANGEABLE
Valve,poppet,engine
Cummins Inc.
5330-00-559-2710 INTERCHANGEABLE
Seal,plain Encased
5360-00-664-3836S1012 INTERCHANGEABLE
Spring,helical,compression
Caterpillar Inc Div Caterpillar Defense
4810-00-955-6651100RB2F2120/60 INTERCHANGEABLE
Valve,solenoid
Emerson Electric Co Alco Controls Div
5340-01-028-0061S1012-17 INTERCHANGEABLE
Handle,bow
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5996-01-337-1120S-1012 INTERCHANGEABLE
Amplifier,radio Frequency
Teledyne Defense Electronics, Llc Dba Teledyne Microwave Solutions
Cross-Reference Index
Part NumberManufacturer
B107.100 The American Society of Mechanical Engineers (USA)
V01012 Sna Germany Gmbh (DEU)
VE2307 Durston Manufacturing Company Dba Vim Tools (USA)
B107.39 TY1CL1 General Services Administration Federal Supply Service (USA)
41W1176-10 General Stores Supply Office (USA)
A-A-1356 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B107.39 The American Society of Mechanical Engineers (USA)
S1012 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
10424444 Nimikkeistokeskus Ncb Finland (FIN)
B107.6 The American Society of Mechanical Engineers (USA)
GGG-W-636 TY4 General Services Administration Federal Supply Service (USA)
S1012 Sna Germany Gmbh (DEU)
Related Parts
4310-00-344-0815INTERCHANGEABLE
RING,PISTON
487159PC11
2815-00-362-1746INTERCHANGEABLE
VALVE,POPPET,ENGINE
9167Y
5330-00-559-2710INTERCHANGEABLE
SEAL,PLAIN ENCASED
5360-00-664-3836INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
S1012
4810-00-955-6651INTERCHANGEABLE
VALVE,SOLENOID
100RB2F2120/60
5340-01-028-0061INTERCHANGEABLE
HANDLE,BOW
S1012-17
5996-01-337-1120INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
S-1012

Frequently Asked Questions

What is NSN 5120-00-277-2307?

NSN 5120-00-277-2307 is a Wrench,open End, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-277-2307?

NSN 5120-00-277-2307 has 13 cross-referenced part numbers: B107.100 (The American Society of Mechanical Engineers), V01012 (Sna Germany Gmbh), VE2307 (Durston Manufacturing Company Dba Vim Tools), B107.39 TY1CL1 (General Services Administration Federal Supply Service), 41W1176-10 (General Stores Supply Office) and 8 more.

What NSN replaces 5120-00-277-2307?

There are 7 known substitutes for 5120-00-277-2307: 4310-00-344-0815, 2815-00-362-1746, 5330-00-559-2710 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.100?

Key specifications for B107.100: Overall Length: 3.625 INCHES MINIMUM IN; Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS; Large End Head Angle: 15.0 DEGREES NOMINAL. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-277-2307 still in active supply?

NSN 5120-00-277-2307 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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