Hager 3902 Fixed Mortise Cylinder with Small Format Interchangeable Core Housing
Professional Mortise Cylinder Solution for Exit Device Applications
The Hager 3902 Fixed Mortise Cylinder provides versatile keying options for mortise exit devices with conventional, SFIC prep, or LFIC prep configurations. Machined from solid bar brass with 1.150" x 32 UNS thread size and 1.360" cylinder face diameter, this professional-grade cylinder accommodates multiple length requirements from 1-1/8" to 1-5/8" depending on configuration. Available in six standard finishes including US26 and US26D for comprehensive architectural coordination.
Professional Features & Benefits
- Multiple Configuration Options: Available in conventional, SFIC prep, or LFIC prep to accommodate various keying system requirements and security protocols.
- Precision Threading: 1.150" x 32 UNS thread size with 1.360" cylinder face diameter ensures proper fit and secure installation in mortise exit devices.
- Solid Brass Construction: Machined from solid bar brass for exceptional durability and long-term performance in commercial applications.
- Flexible Length Options: Conventional lengths of 1-1/8", 1-1/4", and 1-5/8" with SFIC lengths of 1-1/4", 1-3/8", and 1-5/8" plus LFIC length of 1-1/2" accommodate various door thicknesses.
- Standard Keyway Compatibility: Conventional cylinders accept Schlage C and Hager keyways with 6-pin drilling and 5-pin keying (Hager keyways are 7-pin standard).
- Comprehensive Finish Selection: Available in US3, US4, US10, US10B, US26, and US26D finishes for architectural coordination and corrosion resistance.
Technical Specifications
- Commercial/Residential: Commercial
- Series: 4700
- Subcategory: Exit Devices - Mortise Cylinder
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including door thickness and mortise device compatibility for the selected cylinder length.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
- Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
- Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
- Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
- Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Retail Establishments
- Industrial and Warehouse Facilities
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
Why Choose Hager Quality?
Hager mortise cylinders deliver professional-grade reliability with solid bar brass construction machined to precise specifications for demanding commercial applications. The 3902 series accommodates multiple keying formats and length requirements while maintaining consistent quality and performance. Engineered for demanding commercial applications where dependable security hardware is essential.
Support Resources
Manufacturer Resources
Product Specs
- Product Type:
- Mortise Cylinder
- Series:
- 4700
- Subcategory:
- Exit Devices - Mortise Cylinder
- Commercial/Residential:
- Commercial
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Exit Devices - Mortise Cylinder
- Product Model:
- 3902
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware