Schlage Commercial S51PNEP626 Entry Lockset Neptune

Product Description

The SCHLAGE COMMERCIAL S51PNEP626 is an S Series cylindrical entry lockset with a Neptune lever trim, C keyway, and a keyed-different (KD) cylinder. Finished in satin chrome, this lockset is designed for commercial and institutional door applications where controlled access and durability are required. It ships complete with a 16-203 latch and 10-001 strike, making it a ready-to-install unit for standard commercial door preps. The satin chrome finish resists corrosion and wear in high-traffic environments. Licensed locksmiths, commercial door hardware installers, and general contractors are the typical trades installing this hardware.

The S51PNEP626 is suited for commercial buildings, multi-family residential properties, and institutional facilities such as schools, healthcare buildings, and office environments. It is designed for interior and exterior entry door applications where a keyed entry function is required from the outside with free egress from the inside. The Neptune lever style provides an ADA-compliant lever design appropriate for public and commercial occupancies subject to accessibility requirements.

Key Features

• S Series cylindrical lockset with entry function — keyed outside, free egress inside
• Neptune lever trim in satin chrome (626) finish for corrosion resistance in high-traffic use
• C keyway, keyed different (KD) cylinder for individual key control
• Includes 16-203 latch and 10-001 strike for a complete, ready-to-install assembly
• Designed for commercial and institutional door applications

Compatibility

Designed as an OEM-style cylindrical entry lockset for standard commercial door preparations compatible with the Schlage Commercial S Series platform. Specific compatible door or frame model numbers were not provided in the product data.

Installation Notes

Installation should be performed by a licensed locksmith or qualified commercial door hardware installer in accordance with applicable building codes. Ensure the door and frame are prepared to the correct bore and cross-bore dimensions for S Series cylindrical hardware before installation. Verify latch hand orientation prior to installation, as the included 16-203 latch may need to be set for the correct door hand. Do not force the cylinder or lever assembly during installation, as this can damage the internal mechanism.