FSIC Full Size Inter-changeable Cores

Security

• Available in Schlage Classic Obverse open keyways for basic security (FSIC format) and Everest 29 open and restricted keyways with a check pin in the cylinder for better physical security (FSIC and LFIC formats)
• Schlage Obverse and all Everest keyways can gain upgraded security in Primus cylinders featuring the addition of an independent finger pin and sidebar mechanism, restricted distribution and geographically assigned factory-milled side bitting

Convenience

• Use of a special control key allows these cylinders to be removed from  the lock without disassembly for fast rekeying

Compatibility

• Shared keyway families allows integration into an existing Schlage conventional cylinder system
  
• FSIC formatted SL cylinders are uniquely designed to accept the same A2 pinning system used in Schlage's SFIC 7-pin cylinders
• All Schlage commercial mechanical, electrified mechanical and electronic locks are offered in designs made to fit Schlage FSIC formatted cylinders
• LFIC formats are made to fit Sargent® and Corbin Russwin® locks to enable Everest 29 and Primus XP levels of security improvement and facilitate conversion to Schlage lock designs over time.
• FSIC also fits Schlage deadlocks, cabinet locks, padlocks and locking cables

Sargent® and Corbin Russwin® trademarks are the property of Sargent Manufacturing Co. and Assa Abloy respectively.

Construction

• Solid brass bar stock construction (cylinder and housing)
  
• 6-pin keying length (SL FSIC 7-pin)
• Rear mortise cylinder housing sizes range from 1-1/8" to 1-3/4"
• 9 available mortise cylinder cam options
• Available with or without Schlage logo

Physical and administrative security

• Basic security: open Classic keyways are available in a standard pin and tumbler cylinder design (FSIC only)
• Basic security: patented, non-restricted Everest 29 S keys engage with an added check pin in the cylinder
• Enhanced security: patented, restricted Everest 29 T keys also require a check pin in the cylinder
• Upgraded security: patented Primus cylinders add a secondary, independent sidebar and finger pin locking mechanism and are available in 5 levels of geographic exclusivity 

Application

• Master keying, open or restricted keyways, and Primus options available
• Available as rim cylinders for exit devices including Von Duprin and other straight cam applications
• Construction keying available as refundable construction cores

Design variations 

Locks using a mortise housing made to fit Schlage FSIC, or Sargent® and Corbin Russwin® LFIC formats can also be converted to Schlage keyways

Sargent® and Corbin Russwin® trademarks are the property of Sargent Manufacturing Co. and Assa Abloy respectively.

Open keyways upgradeable to Primus RP

• Schlage Classic Obverse open keyways, including Schlage C
• Classic Obverse gains patent protection in a Primus RP cylinder 

Patented keyways upgradeable to Primus XP

• Everest 29™ S keyways include S123 which is the default keyway for all Schlage locksets 
• Everest 29™ T restricted keyways
• Everest 29™ R restricted keyways as a SL cylinders in an FSIC format with the same A2 pinning style of an SFIC 

Upgrades for legacy Everest key systems

• Everest 29 R, S and T keyways are compatible to the legacy Everest B, C and D keyway families respectively
• Legacy Everest keyways are upgradeable to Primus XP 

Master Keying

• Factory master keying available

Electronic validation through the restrictedproduct.allegion.com website (Chrome browser recommended) allows users to easily manage all order authorizations for restricted key systems.

• Eliminates paperwork and saves time
• Provides a secure communication portal for generating restricted product authorizations
• Creates electronic face sheets that can be faxed or emailed
• Enables user review of order authorization history
• Allows users to manage who can generate restricted product authorizations

For more information:

• Restricted Product Brochure
• Restricted Product Instructional Videos
  

Category Information

• Schlage key systems, cylinders and keys catalog
• Understanding Key Control
• Keyway security: A door-by-door approach
• Keyway System Assessment Tool solution sheet

Related Product Information

• Everest 29™ patented key systems
• Everest 29™ SL 7-pin full size cylinders
• Restricted Product Brochure

Technical resources

• Everest® full size cylinder service manual
• Schlage LFIC service manual
• Schlage Primus® service manual
• Everest 29™ SL service manual  

Additional information

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In accordance with California PROP65 -  WARNING: Cancer & Reproductive Harm P65Warnings.ca.gov

Intro to Door Hardware: Intro to Keying Terms

Introduction to Key Systems for Locksmiths

Listen-In Video Lesson | Keying Schematics

Listen-In Video Lesson | Basic Master Keying

How to Convert Schlage Primus XP Cylinders to Primus RP

Master Keying Schlage Large Format Interchangeable Cores

Allegion 101 Secure the door: Intro to Schlage Cylinders, Keys, and Key Systems