Schlage L9453 03 Lever Entrance Mortise Lock Grade 1 Single Cylinder Deadbolt
The L9453 is a Grade 1 mortise lock in the Schlage L Series, configured for entrance/office applications with a single-cylinder thumbturn deadbolt. The outside lever is free unless locked by thumbturn; throwing the deadbolt simultaneously locks the outside lever. Inside egress is always free. UL listed for 3-hour fire doors.
L9453 Entrance Deadbolt Function
- Latchbolt retracted by lever from either side unless outside is locked by 20° thumbturn rotation
- Deadbolt thrown or retracted by 90° thumbturn rotation
- When locked, outside key or inside lever retracts both deadbolt and latchbolt
- Outside lever locked until thumbturn is restored to vertical position
- Throwing deadbolt locks outside lever
- Auxiliary latch deadlocks latchbolt when door is closed
- Inside lever always free for immediate egress
Specifications
- ANSI/BHMA: A156.13-2012, Series 1000, Grade 1 Operational and Grade 1 Security (conventional cylinder); Grade 1 Operational / Grade 2 Security with FSIC; Grade 1 Operational / Grade 3 Security with SFIC
- Case Size: 4-7/16" x 6-1/16" x 1"
- Armor Front: 1-1/4" x 8"
- Standard Strike: 10-072, 1-1/4" x 4-7/8" square corner, 1-3/16" lip, box
- Backset: 2-3/4"
- Door Thickness: 1-3/4"
- Substrate: CRS with Zinc Dichromate Plating
- Standard Cylinder: Conventional 6-pin, C Keyway
- Warranty: 3 Year Limited
Cylinder Options
- P: Conventional 6-pin cylinder (C Keyway) - included
- L: Less conventional cylinder (field-supplied)
- J: Schlage FSIC less core
- B: SFIC less prep core
Rose and Escutcheon Options
- A: Wrought Rose
- B: Wrought Rose (alternate)
- N: Escutcheon
- L: Full Face Escutcheon
Security Features
- Anti-saw pin in deadbolt prevents cut-through
- Security blocking hub prevents lock picking by removing levers
- Breakaway spindle
- Fusible link for fire door compliance
- Field-reversible latchbolt
- Floating mounting tabs
Certifications
- ANSI/BHMA A156.13-2012, Series 1000, Grade 1
- UL listed for 3-hour fire door
- Meets Buy American Act (BAA)
- ANSI/ASTM F476-76 Grade 40, UL listed
- Meets ADA requirements
- UL/cUL listed for A label single doors 4' x 10' and pairs 8' x 10'
Downloads and Resources
Manufacturer Resources
Product Specs
- Subcategory:
- Mortise Locks
- Product Group:
- Mechanical Locks
- Series:
- L Series
- Function Description:
- Latchbolt retracted by knob/lever from either side unless outside is locked by 20 degrees rotation of thumbturn. Deadbolt thrown or retracted by 90 degrees rotation of thumbturn.
- Grade:
- Grade 1
- Duty Level:
- Heavy Duty
- Keyed Function:
- Single Cylinder
- Standard Cylinder:
- Conventional 6-pin Cylinder, C Keyway (P option); Less Core options: J-FSIC, B-SFIC, L-Less Conv.
- Handle Type:
- Lever
- Standard Strike:
- 10-072 1-1/4" x 4-7/8" Square Corner Strike, Box (1-3/16" Lip Length)
- Mortise Case Size:
- 4-7/16" x 6-1/16" x 1"
- Warranty:
- 3 Year Limited
- Keyed:
- Yes
- ANSI/BHMA:
- F20
- Product Subgroup:
- Mortise Locks and Trim
- Product Type:
- Mortise Locks
- Commercial/Residential:
- Commercial
- Lock Type:
- Mortise
- Lock Function:
- Entrance
- Handle Design:
- 03 Lever
- Lever/Knob Design:
- 03 Lever
- IMAP Policy:
- Yes
- Product Attribute:
- Mortise Locks
- Electronic:
- No
- Product Model:
- L9453
- Collection:
- L9000 Series
- Product Function:
- Entrance/Office
- Door Hand Direction:
- Handed
- Door Thickness Range:
- 1-3/4"
- Product Substrate:
- CRS with Zinc Dichromate Plating
- Product Category:
- Mechanical Locks
- Backset (Distance):
- 2-3/4"
- Department:
- Door Hardware
- Armor Front:
- 1-1/4" x 8"