PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.39Wrench,open End

The American Society of Mechanical Engineers · NSN 5120-00-277-8314 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-277-8314 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-277-8314. Primary manufacturer part number: B107.39.
Features
  • Wrench,open End — FSC 5120
  • Small End Head Thickness: 0.156 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Size: 0.375 INCHES NOMINAL SECOND END IN
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
  • Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL
  • Large End Head Thickness: 0.156 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-277-8314, 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 15 commercial cross-references from 9 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
NSN5120-00-277-8314
Primary Part NumberB107.39
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Small End Head Thickness0.156 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size0.375 INCHES NOMINAL SECOND END IN
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Large End Head Thickness0.156 INCHES MAXIMUM IN
Small End Head Angle60.0 DEGREES NOMINAL
Wrenching Surface Size0.344 INCHES NOMINAL FIRST END IN
Large End Head Angle15.0 DEGREES NOMINAL
Specification/standard Data05047-ASME B17.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorDOUBLE HEAD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-181-6847WC65 INTERCHANGEABLE
Wrench,open End
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
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
5120-00-277-8312 INTERCHANGEABLE
Wrench,open End
5120-00-277-8313 INTERCHANGEABLE
Wrench,open End
5120-00-293-1349 INTERCHANGEABLE
Wrench,open End
5950-00-419-533271010037 INTERCHANGEABLE
Transformer,power
Elbitamerica, Inc.
Cross-Reference Index
Part NumberManufacturer
B107.39 The American Society of Mechanical Engineers (USA)
B107.39 TY2CL2 General Services Administration Federal Supply Service (USA)
1109 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
B107.100 CAT 39 TY2CL3 General Services Administration Federal Supply Service (USA)
B107.6 The American Society of Mechanical Engineers (USA)
GGG-W-636 TY6 General Services Administration Federal Supply Service (USA)
B107.100 The American Society of Mechanical Engineers (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-1355 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
V8 Durston Manufacturing Company Dba Vim Tools (USA)
SM-C-804697-1 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
B107.100 CAT 39 TY2CL2 General Services Administration Federal Supply Service (USA)
OEE-2422 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
E28 Bonney Forge Corp (USA)
ES-307 Emporium Specialties Co Inc (USA)
Related Parts
5120-00-181-6847INTERCHANGEABLE
WRENCH,OPEN END
WC65
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
5120-00-277-8312INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-8313INTERCHANGEABLE
WRENCH,OPEN END
5120-00-293-1349INTERCHANGEABLE
WRENCH,OPEN END
5950-00-419-5332INTERCHANGEABLE
TRANSFORMER,POWER
71010037
6150-00-445-2382INTERCHANGEABLE
WIRING HARNESS,BRANCHED
AA1355
5120-00-935-7485INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-00-277-8314?

NSN 5120-00-277-8314 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 5120-00-277-8314?

NSN 5120-00-277-8314 has 15 cross-referenced part numbers: B107.39 (The American Society of Mechanical Engineers), B107.39 TY2CL2 (General Services Administration Federal Supply Service), 1109 (Trw Inc Hand Tools Div Trw Industrial Products Group), B107.100 CAT 39 TY2CL3 (General Services Administration Federal Supply Service), B107.6 (The American Society of Mechanical Engineers) and 10 more.

What NSN replaces 5120-00-277-8314?

There are 12 known substitutes for 5120-00-277-8314: 5120-00-181-6847, 5120-00-277-3414, 5120-00-277-8308 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.39?

Key specifications for B107.39: Small End Head Thickness: 0.156 INCHES MAXIMUM IN; Material: STEEL OVERALL; Surface Treatment: CHROMIUM OVERALL; Wrenching Surface Size: 0.375 INCHES NOMINAL SECOND END IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-277-8314 still in active supply?

NSN 5120-00-277-8314 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