PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.39Wrench,open End

The American Society of Mechanical Engineers · NSN 5120-01-399-9902 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9902 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9902. Primary manufacturer part number: B107.39.
Features
  • Wrench,open End — FSC 5120
  • Small End Head Thickness: 0.172 INCHES NOMINAL IN
  • Large End Head Thickness: 0.172 INCHES NOMINAL IN
  • Small End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL
  • Nondefinitive Spec/std Data: 3 TYPE
  • Material: STEEL OVERALL
  • Style Designator: THIN DOUBLE HEAD
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-01-399-9902, 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 8 commercial cross-references from 5 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
NSN5120-01-399-9902
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 Thickness0.172 INCHES NOMINAL IN
Large End Head Thickness0.172 INCHES NOMINAL IN
Small End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Nondefinitive Spec/std Data3 TYPE
MaterialSTEEL OVERALL
Style DesignatorTHIN DOUBLE HEAD
Large End Head Angle15.0 DEGREES NOMINAL
Specification/standard Data05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Size0.625 INCHES NOMINAL SECOND END IN
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size0.562 INCHES NOMINAL FIRST END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5841-00-090-673434-30 INTERCHANGEABLE
Ring
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5120-00-184-8621 INTERCHANGEABLE
Wrench,open End
4730-00-196-1542 INTERCHANGEABLE
Nipple,pipe
5120-00-277-1322 INTERCHANGEABLE
Wrench,open End
5120-00-277-2327 INTERCHANGEABLE
Wrench,open End
5120-00-277-2328 INTERCHANGEABLE
Wrench,open End
5120-00-277-2329 INTERCHANGEABLE
Wrench,open End
5120-00-277-4833 INTERCHANGEABLE
Wrench,open End
5999-00-444-4739 INTERCHANGEABLE
Oven,electrical-Electronic Compo
5120-00-473-6538 INTERCHANGEABLE
Wrench,open End
Cross-Reference Index
Part NumberManufacturer
B107.39 The American Society of Mechanical Engineers (USA)
B107.100 CAT 39 TY3 General Services Administration Federal Supply Service (USA)
1ANN0 W.w. Grainger, Inc. Div Government Sales Division (USA)
J3430 The Stanley Works Dba Stanley Proto (USA)
B107.39 TY3 General Services Administration Federal Supply Service (USA)
STP 3430 Kipper Tool Company Dba Kipper Management Inc (USA)
3430 The Stanley Works Dba Stanley Proto (USA)
B107.100 The American Society of Mechanical Engineers (USA)
Related Parts
5841-00-090-6734INTERCHANGEABLE
RING
34-30
5120-00-184-8621INTERCHANGEABLE
WRENCH,OPEN END
4730-00-196-1542INTERCHANGEABLE
NIPPLE,PIPE
5120-00-277-1322INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-2327INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-2328INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-2329INTERCHANGEABLE
WRENCH,OPEN END
5120-00-277-4833INTERCHANGEABLE
WRENCH,OPEN END
5999-00-444-4739INTERCHANGEABLE
OVEN,ELECTRICAL-ELECTRONIC COMPO
5120-00-473-6538INTERCHANGEABLE
WRENCH,OPEN END
3030-00-528-4612INTERCHANGEABLE
BELT,V
5120-00-541-0895INTERCHANGEABLE
WRENCH,OPEN END

Frequently Asked Questions

What is NSN 5120-01-399-9902?

NSN 5120-01-399-9902 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 5120-01-399-9902?

NSN 5120-01-399-9902 has 8 cross-referenced part numbers: B107.39 (The American Society of Mechanical Engineers), B107.100 CAT 39 TY3 (General Services Administration Federal Supply Service), 1ANN0 (W.w. Grainger, Inc. Div Government Sales Division), J3430 (The Stanley Works Dba Stanley Proto), B107.39 TY3 (General Services Administration Federal Supply Service) and 3 more.

What NSN replaces 5120-01-399-9902?

There are 12 known substitutes for 5120-01-399-9902: 5841-00-090-6734, 5120-00-184-8621, 4730-00-196-1542 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.39?

Key specifications for B107.39: Overall Length: 10.000 INCHES NOMINAL IN; Small End Head Thickness: 0.172 INCHES NOMINAL IN; Large End Head Thickness: 0.172 INCHES NOMINAL IN; Small End Head Angle: 15.0 DEGREES NOMINAL. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-9902 still in active supply?

NSN 5120-01-399-9902 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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