The Schlage 03-255-ATH is the OEM Athens Lever factory prepared for Yale 6-pin Full-Size Interchangeable Core (FSIC / J-YA6), for the Schlage AD Series, CO Series, ALX Series, ND Series, and NDE Series cylindrical locks, documented in five official Schlage Service Manuals including the NDE Series. Per the SecurityParts.com product page primary function: "Houses Yale 6-pin FSIC cores for manual latch retraction." Supplied less core. Standard non-tactile Athens lever. Non-handed. In stock.

What the 03-255 Yale 6-Pin FSIC J-YA6 Format Means

The 03-255 prefix identifies levers with factory preparation for the Yale 6-pin Full-Size Interchangeable Core in the J-YA6 configuration. Per the SecurityParts.com FAQ: "The Schlage 03-255-ATH is a genuine OEM Athens-style exterior replacement lever handle designed to accept a 6-pin Yale Full Size Interchangeable Core (FSIC / J-YA6)." The FAQ also confirms: "This lever is uniquely milled to fit the distinct physical shell dimensions, depth tolerances, and locking lug paths of a Yale FSIC cylinder casing, meaning standard Schlage security cores will not seat." A compatible Yale 6-pin FSIC (J-YA6) core must be sourced separately and installed in the field.

The 03-255 format is distinct from the 03-236 lever family, which is also a Yale FSIC prep but uses a 7-pin configuration. The 03-255-ATH accepts a Yale 6-pin FSIC (J-YA6) core. These two Yale FSIC formats are not interchangeable. Confirm the pin count of the installed Yale FSIC core before ordering to ensure the correct lever format is selected.

Two Legacy Part Numbers Replaced by the 03-255-ATH

The 03-255-ATH supersedes two legacy part numbers, as confirmed on the SecurityParts.com product page under "Original Part#."

• 09-355-ATH: Original part number covering both cylindrical lock and mortise lock outside trim applications using the Athens Yale 6-pin FSIC lever.
• 03-355-ATH: Original part number for exit device outside trim applications.

Any maintenance record or specification referencing 09-355-ATH (cylindrical or mortise) or 03-355-ATH (exit device) maps to the 03-255-ATH as the current OEM replacement.

Five-Series Coverage and Finishes

Per the FAQ: "This premium OEM component features Schlage's universal architectural trim engineering, enabling it to fit seamlessly onto AD Series, CO Series, ALX Series, and ND Series chassis configurations." The 03-255-ATH is compatible with AD Series, CO Series, ALX Series, ND Series, and NDE Series. Ten finishes are listed: 605 (Bright Brass), 606 (Satin Brass), 612 (Satin Bronze), 613 (Oil Rubbed Bronze), 619 (Satin Nickel), 622 (Matte Black), 625 (Bright Chrome), 626 (Satin Chrome), 626AM (Satin Chrome Antimicrobial), and 643E (Aged Bronze). All finishes are currently not available. Finish must be specified at time of order. Contact SecurityParts.com for current finish availability. The Yale 6-pin FSIC (J-YA6) core is not included.

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