Back to main menu
Private Label
Protective Clothing
- Back to Shop by categories
- See all Protective Clothing
- Upper
  - Back to Protective Clothing
  - See all Upper
  - Sweaters & Jackets
  - Work Shirts
  - Aprons
  - Vests
- Lower
  - Back to Protective Clothing
  - See all Lower
  - Work Pants
  - Bib Overalls
- Coveralls & Sets
  - Back to Protective Clothing
  - See all Coveralls & Sets
  - Disposable
  - Fire Resistant
  - Insulated
- Accessories
  - Back to Protective Clothing
  - See all Accessories
  - Base Layers
  - Toques & Balaclavas
  - Neck Gaiters
  - Hard Hat Liners
- Hi-Vis
- Welding
- Ergonomics
- Other Clothing
- Rainwear
Hand Protection
- Back to Shop by categories
- See all Hand Protection
- Coated
- Leather
- Synthetic
- Impact Resistant
- Anti-Vibration
- Knit / Cotton
- Safety Sleeves
- Arc Flash Protection
- Mitts
- Welding
- Disposable
Foot Protection
- Back to Shop by categories
- See all Foot Protection
- Rubber Boots
- Boot Liners
- Traction Aids
- Temporary Protection
- Work Boots & Shoes
Hearing Protection
- Back to Shop by categories
- See all Hearing Protection
- Earplugs
  - Back to Hearing Protection
  - See all Earplugs
  - Disposable
  - Reusable
  - Dispensers
- Banded
- Earmuffs
  - Back to Hearing Protection
  - See all Earmuffs
  - Standard
  - Electronic
Head & Face Protection
- Back to Shop by categories
- See all Head & Face Protection
- Hard Hats
  - Back to Head & Face Protection
  - See all Hard Hats
  - Full Brim
  - Cap Style
- Hard Hat Accessories
  - Back to Head & Face Protection
  - See all Hard Hat Accessories
  - Earmuffs
  - Suspensions
  - Chin Straps
  - Holders
  - Sweat Bands
- Face Shields
  - Back to Head & Face Protection
  - See all Face Shields
  - Visor Brackets
  - Replacement Visors
- Protective Hoods
- Welder's Feceshields
  - Back to Head & Face Protection
  - See all Welder's Feceshields
  - Masks
Eye Protection
- Back to Shop by categories
- See all Eye Protection
- Safety Glasses
- Goggles
- Glasses Accessories
  - Back to Eye Protection
  - See all Glasses Accessories
  - Inserts For Prescription Lenses
- Cleaning Products
  - Back to Eye Protection
  - See all Cleaning Products
  - Lens Cleaning Wipes
  - Lens Cleaning Solutions
  - Lens Cleaning Stations
Respiratory Protection
- Back to Shop by categories
- See all Respiratory Protection
- Disposable Respirators
- Reusable Respirators
  - Back to Respiratory Protection
  - See all Reusable Respirators
  - Full-Face Respirators
  - Half-Mask Respirators
  - Cartridges & Filters
- Powered Air Purifying Systems (PAPR)
  - Back to Respiratory Protection
  - See all Powered Air Purifying Systems (PAPR)
  - Complete Kits
  - Hoods & Helmets
  - Breathing Tubes & Adapters
  - Cartridges & Filters
  - Accessories
- Self Contained Breathing Apparatus
  - Back to Respiratory Protection
  - See all Self Contained Breathing Apparatus
  - Accessories
  - Complete SCBA Units
  - Facepieces
  - Cylinders & Assemblies
  - Cases
- Supplied Air Breathing Apparatus
  - Back to Respiratory Protection
  - See all Supplied Air Breathing Apparatus
  - Complete SABA Units
  - Cylinders & Assemblies
  - Cases
- Quantitative Fit Testing
  - Back to Respiratory Protection
  - See all Quantitative Fit Testing
  - Fit Testing Machines
  - Adapters & Accessories
- Qualitative Fit Testing
  - Back to Respiratory Protection
  - See all Qualitative Fit Testing
  - Kits
  - Adapters & Accessories
- Escape Solutions
  - Back to Respiratory Protection
  - See all Escape Solutions
  - Escape Kits
- Air Carts
  - Back to Respiratory Protection
  - See all Air Carts
  - Cylinders & Assemblies
  - Air Line Hoses & Accessories
- Grade-D Filtration
  - Back to Respiratory Protection
  - See all Grade-D Filtration
  - Filtration Systems
  - Air Line Hoses & Accessories
- Breathing Air Assemblies
  - Back to Respiratory Protection
  - See all Breathing Air Assemblies
  - Regulators
- Confined Space Ventilation
  - Back to Respiratory Protection
  - See all Confined Space Ventilation
  - Non-Hazardous Location Blowers & Kits
  - Hazardous Location Blowers & Kits
  - Venturi Style Blowers
  - Accessories
- Cylinder Storage Solutions
- Cleaning & Disinfecting
Instrumentation
- Back to Shop by categories
- See all Instrumentation
- Portable Gas Detection
  - Back to Instrumentation
  - See all Portable Gas Detection
  - Single or Two Gas Detectors
  - Multi-Gas Detectors
  - Sampling Monitors
  - Area Monitoring
  - Test & Calibration Stations
  - Gas Cylinders & Regulators
  - Additional Accessories
Fall Protection
- Back to Shop by categories
- See all Fall Protection
- Full Body Harnesses
- Body Belts
- Lanyards
  - Back to Fall Protection
  - See all Lanyards
  - Energy Absorbing Lanyards
  - Restraint & Positioning Lanyards
- Self Retracting Lanyards
- Lifelines
  - Back to Fall Protection
  - See all Lifelines
  - Temporary Horizontal Lifelines
  - Rope Lifelines
  - Vertical Systems
  - Cable & Rope Grabs
- Anchorage Connectors & Hardware
- Confined Space Equipment
  - Back to Fall Protection
  - See all Confined Space Equipment
  - Kits
  - Tripods
  - Davit Arms & Masts
  - Davit Arm Bases
  - Davit Accessories
  - Winches
- Rescue & Descent Devices
  - Back to Fall Protection
  - See all Rescue & Descent Devices
  - Descenders
  - Pulleys
  - Kits
  - Escape Systems
- Roofing Solutions
  - Back to Fall Protection
  - See all Roofing Solutions
  - Kits
  - Anchors
- General Accessories
  - Back to Fall Protection
  - See all General Accessories
  - Carabiners
  - Tool Tethers
  - Tool Holders
  - Harness Accessories
  - Carrying Bags
First Aid
- Back to Shop by categories
- See all First Aid
- Eyewash Stations
  - Back to First Aid
  - See all Eyewash Stations
  - Portable eyewash stations
- First Aid Kits
  - Back to First Aid
  - See all First Aid Kits
  - British Columbia Kits
  - Alberta Kits
  - Ontario Kits
  - Burn Kits
  - Speciality Kits
- First Aid Supplies
- Emergency Equipment
- AED Supplies
  - Back to First Aid
  - See all AED Supplies
  - Defibrillators
  - Pads
  - Batteries
  - Cabinets
  - Additional Accessories
Lockout - Tagout
- Back to Shop by categories
- See all Lockout - Tagout
- Safety Locks
- Additional Accessories
  - Back to Lockout - Tagout
  - See all Additional Accessories
  - Tags
Road Safety
- Back to Shop by categories
- See all Road Safety
- Cones & Markers
  - Back to Road Safety
  - See all Cones & Markers
  - Traffic Cones
  - Traffic Markers
- Road Safety Accessories
  - Back to Road Safety
  - See all Road Safety Accessories
  - Barricades & Accessories
  - Flags & Accessories
  - Traffic Triangles
  - Flasher Lights
  - Speed Bumps
- Cargo Restraint
- Additional Accessories
Signage & Tape
- Back to Shop by categories
- See all Signage & Tape
- General Signage
  - Back to Signage & Tape
  - See all General Signage
  - No Smoking
- Tape
Environmental Protection
- Back to Shop by categories
- See all Environmental Protection
- Absorbents
  - Back to Environmental Protection
  - See all Absorbents
  - Sorbent Pillow
  - Granular Absorbent
  - Sorbent Sheets & Pads
  - Sorbent Socks
- Spill Kits
- Additional Accessories
Handling & Storage
- Back to Shop by categories
- See all Handling & Storage
- Safety Cans & Containers
  - Back to Handling & Storage
  - See all Safety Cans & Containers
  - Outdoor Ashtray Stands
Other Protection Products
- Back to Shop by categories
- See all Other Protection Products
- Signal Flares, Bangers & Horns
- Cases
Industrial Supply
- Back to Shop by categories
- See all Industrial Supply
- Abrasives
- Adhesives / Oils / Chemicals
- Tapes
- Power Tools
- Welding
- Industrial Supply for Ergonomics
Fire / Rescue
- Back to Shop by categories
- See all Fire / Rescue
- Gloves
  - Back to Fire / Rescue
  - See all Gloves
  - Extrication Gloves
  - Structural Gloves
- Hoods
- Boots
  - Back to Fire / Rescue
  - See all Boots
  - Structural Boots
  - Wildland Boots
- Helmets
  - Back to Fire / Rescue
  - See all Helmets
  - Structural Helmets
  - Wildland Helmets
- Hoses & Nozzles
- Turnout Gear
  - Back to Fire / Rescue
  - See all Turnout Gear
  - Lower
- Station Wear
  - Back to Fire / Rescue
  - See all Station Wear
  - Base Layers
- Hazmat
  - Back to Fire / Rescue
  - See all Hazmat
  - Decontamination Equipment
- Hardware
  - Back to Fire / Rescue
  - See all Hardware
  - Couplings/Adapters/Tools
  - Valves
  - Suction Hose & Strainers
  - Ladders
- Lighting
  - Back to Fire / Rescue
  - See all Lighting
  - Flashlights
  - Headlamps
  - Helmet Lights
  - Scene Lights
- SCBAs & Communications
  - Back to Fire / Rescue
  - See all SCBAs & Communications
  - NFPA SCBAs
- Foam
  - Back to Fire / Rescue
  - See all Foam
  - Foam Agents
- Rescue/Extrication
  - Back to Fire / Rescue
  - See all Rescue/Extrication
  - Airbags & Struts
  - Forcible Entry Tools
- Ventillation
  - Back to Fire / Rescue
  - See all Ventillation
  - Battery Powered Blowers/Fans
  - Gas Powered Blowers/Fans
  - Ventillation Accessories
- Thermal Imaging Cameras
- Wildland Equipment
  - Back to Fire / Rescue
  - See all Wildland Equipment
  - Wildland Hoses
  - Wildland Pumps
- Wildland Clothing
  - Back to Fire / Rescue
  - See all Wildland Clothing
  - Base Layers
- Extinguishers
  - Back to Fire / Rescue
  - See all Extinguishers
  - Extinguishers
  - Accessories & Parts

Ship to

Your Delivery Method

My Account

Bill to {{vm.session.billTo.firstName}} {{vm.session.billTo.lastName}} ({{vm.session.billTo.customerNumber}} {{vm.session.billTo.properties.guillevin_LegacyAccountNumber}}) Change Account

Sign Out

My Cart

99 + items

Home
Safety
Lockout - Tagout
Safety Locks
BUTTERFLY VALVE LOCKOUT KIT, DEVICE AND S806CBL3

Master Lock

BUTTERFLY VALVE LOCKOUT KIT, DEVICE AND S806CBL3

MLO-S3921 MFG #: S3921

MLO-S3921_1 - 6245d48d-5761-4eb2-84ce-7a845a3ae20b.jpg

Best Seller: False
Dangerous Goods: False
Discontinued: False
Featured Product: False
Green Product: False
Limited Quantity: False
Made in Canada: False
Manufacturer: MASTER LOCK
Mfr Vendor ID: 245
Oversize product: False
Restricted Delivery: False
SPF Product ID: 2296219
Web Group: 3110100000000

The Master Lock No. S3921 Butterfly Valve Lockout Device and S806CBL3 Adjustable locking cable locks out virtually any butterfly valve in just seconds with use of S806 adjustable locking cable. The easy-to-use wedge-shaped device features a stainless steel rivet allowing device to smoothly pivot open and closed to ensure proper fit and directional application arrows allow for ease of installation and minimize error. Made of durable, lightweight Zenex™ thermoplastic material, device is chemical resistant and performs effectively in extreme environments.