PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.39Wrench,open End

The American Society of Mechanical Engineers · NSN 5120-00-277-8312 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-277-8312 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-277-8312. Primary manufacturer part number: B107.39.
Features
  • Wrench,open End — FSC 5120
  • Specification/standard Data: 05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Large End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 0.312 INCHES NOMINAL SECOND END IN
  • Small End Head Thickness: 0.156 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
  • Material: STEEL OVERALL
  • Style Designator: DOUBLE HEAD
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-277-8312, 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 12 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-277-8312
Primary Part NumberB107.39
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Specification/standard Data05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Large End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size0.312 INCHES NOMINAL SECOND END IN
Small End Head Thickness0.156 INCHES MAXIMUM IN
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
MaterialSTEEL OVERALL
Style DesignatorDOUBLE HEAD
Small End Head Angle60.0 DEGREES NOMINAL
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size0.281 INCHES NOMINAL FIRST END IN
Large End Head Thickness0.156 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4320-00-146-4905V6 INTERCHANGEABLE
Housing,liquid Pump
Circor Naval Solutions Llc Dba Warren Pumps
5120-00-181-6847WC65 INTERCHANGEABLE
Wrench,open End
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
3030-00-264-305624433 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5120-00-277-3414 INTERCHANGEABLE
Wrench,open End
5120-00-277-8308 INTERCHANGEABLE
Wrench,open End
5120-00-277-8309 INTERCHANGEABLE
Wrench,open End
5120-00-277-8310 INTERCHANGEABLE
Wrench,open End
5120-00-277-8311 INTERCHANGEABLE
Wrench,open End
5120-00-277-8313 INTERCHANGEABLE
Wrench,open End
5120-00-277-8314 INTERCHANGEABLE
Wrench,open End
Cross-Reference Index
Part NumberManufacturer
B107.39 The American Society of Mechanical Engineers (USA)
V6 Durston Manufacturing Company Dba Vim Tools (USA)
B107.6 The American Society of Mechanical Engineers (USA)
B107.39 TY2CL2 General Services Administration Federal Supply Service (USA)
GGG-W-636 TY6 General Services Administration Federal Supply Service (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B107.100 CAT 39 TY2CL2 General Services Administration Federal Supply Service (USA)
A-A-1355 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B107.100 CAT 39 TY2CL3 General Services Administration Federal Supply Service (USA)
ES-305 Emporium Specialties Co Inc (USA)
1932WZ9/32X5/16 Sna Germany Gmbh (DEU)
B107.100 The American Society of Mechanical Engineers (USA)
Related Parts
4320-00-146-4905INTERCHANGEABLE
HOUSING,LIQUID PUMP
V6
5120-00-181-6847INTERCHANGEABLE
WRENCH,OPEN END
WC65
3030-00-264-3056INTERCHANGEABLE
BELT,V
24433
5120-00-277-3414INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-8308INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-8309INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-8310INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-8311INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-8313INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-8314INTERCHANGEABLE
WRENCH,OPEN END
5120-00-293-1349INTERCHANGEABLE
WRENCH,OPEN END
6150-00-445-2382INTERCHANGEABLE
WIRING HARNESS,BRANCHED
AA1355

Frequently Asked Questions

What is NSN 5120-00-277-8312?

NSN 5120-00-277-8312 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 5120-00-277-8312?

NSN 5120-00-277-8312 has 12 cross-referenced part numbers: B107.39 (The American Society of Mechanical Engineers), V6 (Durston Manufacturing Company Dba Vim Tools), B107.6 (The American Society of Mechanical Engineers), B107.39 TY2CL2 (General Services Administration Federal Supply Service), GGG-W-636 TY6 (General Services Administration Federal Supply Service) and 7 more.

What NSN replaces 5120-00-277-8312?

There are 12 known substitutes for 5120-00-277-8312: 4320-00-146-4905, 5120-00-181-6847, 3030-00-264-3056 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.39?

Key specifications for B107.39: Specification/standard Data: 05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Large End Head Angle: 15.0 DEGREES NOMINAL; Wrenching Surface Size: 0.312 INCHES NOMINAL SECOND END IN; Small End Head Thickness: 0.156 INCHES MAXIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-277-8312 still in active supply?

NSN 5120-00-277-8312 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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