PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3719Wrench,open End

Martin Sprocket and Gear Inc · NSN 5120-00-184-8654 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-184-8654 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-184-8654. Primary manufacturer part number: 3719.
Features
  • Wrench,open End — FSC 5120
  • Small End Head Thickness: 0.297 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Small End Head Angle: 15.0 DEGREES NOMINAL
  • Style Designator: DOUBLE HEAD
  • Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL
  • Large End Head Thickness: 0.297 INCHES MAXIMUM IN
  • Large End Head Angle: 60.0 DEGREES NOMINAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-184-8654, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Martin Sprocket and Gear Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-184-8654
Primary Part Number3719
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerMartin Sprocket and Gear Inc
StatusACTIVE
Small End Head Thickness0.297 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Small End Head Angle15.0 DEGREES NOMINAL
Style DesignatorDOUBLE HEAD
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Large End Head Thickness0.297 INCHES MAXIMUM IN
Large End Head Angle60.0 DEGREES NOMINAL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size0.938 INCHES NOMINAL BOTH ENDS IN
Nondefinitive Spec/std Data2 TYPE AND 3 CLASS
Specification/standard Data05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6135-00-112-8637BA305U INTERCHANGEABLE
Battery,nonrechargeable
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5120-00-184-86523717 INTERCHANGEABLE
Wrench,open End
Martin Sprocket and Gear Inc
5120-00-184-86533718 INTERCHANGEABLE
Wrench,open End
Martin Sprocket and Gear Inc
5120-00-289-82095120002898209 INTERCHANGEABLE
Wrench,open End
General Services Administration Federal Supply Service
5120-00-289-8210 INTERCHANGEABLE
Wrench,open End
5120-00-289-8212 INTERCHANGEABLE
Wrench,open End
5120-00-293-00533716 INTERCHANGEABLE
Wrench,open End
Martin Sprocket and Gear Inc
5120-00-293-1794 INTERCHANGEABLE
Wrench,open End
5120-00-293-17963715 INTERCHANGEABLE
Wrench,open End
Martin Sprocket and Gear Inc
5120-00-293-21363721 INTERCHANGEABLE
Wrench,open End
Martin Sprocket and Gear Inc
Cross-Reference Index
Part NumberManufacturer
B107.100 The American Society of Mechanical Engineers (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-1359 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B107.100 CAT 39 TY2CL3 General Services Administration Federal Supply Service (USA)
3719 PRIMARY Martin Sprocket and Gear Inc (USA)
GGG-W-636 TY16ST1 General Services Administration Federal Supply Service (USA)
DA30 PRIMARY Stanley Industrial & Automotive Llc (USA)
Related Parts
6135-00-112-8637INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
BA305U
5120-00-184-8652INTERCHANGEABLE
WRENCH,OPEN END
3717
5120-00-184-8653INTERCHANGEABLE
WRENCH,OPEN END
3718
5120-00-289-8209INTERCHANGEABLE
WRENCH,OPEN END
5120002898209
5120-00-289-8210INTERCHANGEABLE
WRENCH,OPEN END
5120-00-289-8212INTERCHANGEABLE
WRENCH,OPEN END
5120-00-293-0053INTERCHANGEABLE
WRENCH,OPEN END
3716
5120-00-293-1794INTERCHANGEABLE
WRENCH,OPEN END
5120-00-293-1796INTERCHANGEABLE
WRENCH,OPEN END
3715
5120-00-293-2136INTERCHANGEABLE
WRENCH,OPEN END
3721
3040-00-326-0695INTERCHANGEABLE
EXTENSION SHAFT
371-9B
5950-00-532-1145INTERCHANGEABLE
COIL,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 5120-00-184-8654?

NSN 5120-00-184-8654 is a Wrench,open End, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-184-8654?

NSN 5120-00-184-8654 has 7 cross-referenced part numbers: B107.100 (The American Society of Mechanical Engineers), GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC), A-A-1359 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), B107.100 CAT 39 TY2CL3 (General Services Administration Federal Supply Service), 3719 (Martin Sprocket and Gear Inc) and 2 more.

What NSN replaces 5120-00-184-8654?

There are 12 known substitutes for 5120-00-184-8654: 6135-00-112-8637, 5120-00-184-8652, 5120-00-184-8653 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3719?

Key specifications for 3719: Small End Head Thickness: 0.297 INCHES MAXIMUM IN; Material: STEEL OVERALL; Special Features: FORGED STEEL; Small 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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