The Schlage 03-277-ATH is the OEM Athens Lever designed for Sargent Full-Size Interchangeable Core (FSIC / J-SAR) 6-pin applications, for the Schlage AD Series, CO Series, ALX Series, and ND Series cylindrical locks. Per the SecurityParts.com product page: "Schlage 03-277-ATH is a genuine OEM Athens-style exterior lever less core for compatible Schlage commercial locks configured for Sargent Full-Size Interchangeable Core (FSIC) cylinders. Supplied less core for field installation of the compatible Sargent LFIC." Standard non-tactile Athens lever. Non-handed.

Three Legacy Part Numbers Replaced by the 03-277-ATH

The 03-277-ATH replaces three legacy part numbers, as confirmed on the SecurityParts.com product page under "Original Part#."

• 03-077-ATH: Original part number for cylindrical lock outside trim applications using the Athens Sargent FSIC lever.
• 09-377-ATH: Original part number for mortise lock trim applications. The 09 prefix in the legacy Schlage system identified mortise trim levers.
• 03-377-ATH: Original part number for exit device outside trim applications.

Any maintenance record or specification referencing these three legacy numbers maps to the 03-277-ATH as the current OEM replacement, regardless of whether the original installation was on a cylindrical lock, mortise lock, or exit device.

Standard vs Tactile: 03-277-ATH vs 03-277-8AT

The 03-277-ATH is the standard non-tactile Athens Sargent FSIC lever. The 03-277-8AT is the tactile version with knurled tactile grooves on the handle for ADA hazardous area identification. Both accept a Sargent FSIC (J-SAR) 6-pin core and supply less cylinder. Per the product page: "The lever is supplied less core, allowing installation of a compatible 6-pin Sargent LFIC into the existing master key system." Confirm the original installation specification before ordering to avoid installing a standard lever at a position that required the tactile designation.

Sargent FSIC Format and Series Compatibility

Per the SecurityParts.com product page: "This replacement lever restores the original appearance and functionality of compatible AD Series, CO Series, ALX Series, and ND Series locks configured for Sargent large format interchangeable cores." The primary function is confirmed as "Accommodates a Sargent conventional 6-pin LFIC (J-SAR) interchangeable core for manual latch retraction and rapid re-keying safety." The 03-277 Sargent FSIC format is distinct from the 03-244 Sargent conventional KIL format. A compatible Sargent FSIC core must be sourced separately. Finish must be specified at time of order. Contact SecurityParts.com for current finish and availability information.

SecurityParts stocks OEM Schlage ND Series and ALX Series lever components. Free shipping on orders over $300.