The Schlage 09-506 LAT is the outside lever and rose assembly for the Schlage L Series Grade 1 mortise lock, configured with the Latitude (LAT) lever design. When an outside lever on an installed L Series mortise lock is damaged, worn, or needs to match a new finish specification across a facility, this is the OEM replacement assembly that brings the trim back to factory specification without touching the lock case or chassis. The assembly ships as a complete outside lever and rose unit, ready to mount to the existing L Series door prep.

What the LAT Latitude Lever Design Looks Like

The Latitude lever is one of Schlage's clean-lined, contemporary designs from the L Series standard collection. It carries a smooth, horizontal profile with a long handgrip that returns to within 1/2 inch of the door face, keeping it compliant with California fire code and ADA accessibility standards. The lever body is constructed of solid brass or solid stainless steel depending on the finish selected, giving it the same material weight and feel found across the entire L Series trim lineup. Because the Latitude design is in the milled tactile warning group, it can be specified with a tactile warning texture on the outside lever for applications near hazards.

One important planning note: indicator trim is not available on the Latitude design. If the opening requires the 180-degree locked/unlocked indicator, a different lever design needs to be specified instead.

Finish and Rose Options for the 09-506 LAT

This assembly is available in 10 finishes to match existing L Series installations or meet a new architectural specification. The finishes are 626/US26D Satin Chrome, 625/US26 Bright Chrome, 629/US32 Bright Chrome, 606/US4 Satin Brass, 619/US15 Satin Nickel, 605/US3 Bright Brass, 643E Aged Bronze, 622/US19 Powder-Coated Matte Black, 630/US32D Satin Stainless Steel, and 609/US5 Antique Brass.

Three rose sizes are available to match the original installation: A Rose at 2-1/8 inches (54mm) diameter, B Rose at 2-9/16 inches (65mm) diameter, and C Rose at 2-5/8 inches (66.68mm) diameter. All three rose sizes are wrought brass or stainless steel depending on the selected finish. Roses cannot be combined with escutcheons, so if the existing installation uses an L or N escutcheon, the correct replacement part is a different assembly.

Schlage L Series Outside Lever Assembly Compatibility

The 09-506 designation covers the outside lever and rose assembly across the full range of L9000 Series mortise lock functions. That includes passage latch (L9010), exit (L9025), privacy (L9040), hospital privacy (L9044), entrance/office (L9050), corridor (L9056), classroom (L9070/L9071), storeroom (L9080), and all associated electrified variants. The assembly also works with multi-point and LT Series tubular locks that share the L Series trim architecture.

The L Series platform itself meets ANSI/BHMA A156.13 Series 1000, Grade 1 Operational and Security standards. All levers suite with Von Duprin exit devices, providing a consistent aesthetic across mixed hardware installations on the same opening. The locking lever bushing integral to the L Series chassis eliminates exposed screws on inside levers, and the external spring cage allows simple trim retrofit without disturbing the lock case, which is relevant here since this outside lever assembly can be swapped without removing the mortise body from the door.

For the complete Schlage L Series parts catalog, including inside lever assemblies, spring cages, spindle assemblies, and related mortise lock hardware, SecurityParts stocks the full service parts range.