Marks USA 195DW Survivor Institution Lock

The Marks USA 195DW is the institution function lock in the Survivor Series, built for exactly the kind of door that sees deliberate, repeated attempts to force the lever. The function is ANSI F87: both levers are always locked. Neither lever operates the latch under any condition. The only way to retract the latch bolt is with a key from either side. This is the specification for psychiatric units, behavioral health wards, detention facilities, secure residential housing, and any setting where occupants should never be able to open a door independently.

What separates the 195DW from a standard ANSI F87 cylindrical lock is the Survivor Series clutch mechanism. When the lock is in the locked state, the levers physically disengage from the retractor and all interior lock mechanisms. Both levers spin completely freely. If a patient or detainee grabs the lever and forces it, the lever rotates without resistance in either direction. There's nothing for the force to act against. The lever spins and the lock mechanism is untouched. Standard locked levers on a conventional cylindrical lock resist that force and eventually fail - the lever bends, the rose cracks, the retractor breaks. In an institutional environment where that scenario happens dozens of times a day across hundreds of doors, the maintenance cost of conventional hardware is significant. The Survivor clutch mechanism removes that cost entirely. For all commercial locks and institutional hardware, browse our commercial locks catalog.

Institution Function vs Asylum Function: F87 in Context

ANSI F87 is the institution function. Both levers are permanently inoperable. Key-only operation from both sides, every time. This is a more restrictive function than the classroom security function (ANSI F88) where the inside key controls the outside lever, and more restrictive than the standard storeroom function (ANSI F86) where the inside lever is always free for egress.

In psychiatric and detention applications, ANSI F87 is specified precisely because the inside lever must not provide any egress capability. Occupants cannot exit without staff unlocking the door from either side with a key. Confirm this is the correct function for the specific application and jurisdiction before ordering.

Marks USA 195DW Specifications

• SKU: 195DW

• Also known as: Marks USA 195DW, 195DW26D, 195DW/26D, 195DW10B, marks 195 institution lock, marks survivor series institution, marks lock 195DW, institutional lockset marks

• Series: Marks USA Survivor Series

• Function: Institution, ANSI F87

• Lever operation: Both levers permanently inoperable; deadlocking latch by key from either side

• Clutch mechanism: Freewheeling levers disengage from retractor when locked; levers spin freely under forced operation; no damage to internal lock mechanism

• Grade: ANSI/BHMA Grade 1

• Backset: 2-3/4"

• Bore hole: 2-1/8"

• Latch bore: 1"

• Rose: 3-7/16" diameter

• Cylinder: Conventional cylinder, 6-pin

• Keyway: Marks C keyway

• Keyblank: SCHL-C-6-1

• Door thickness: 1-5/8" to 1-7/8"

• Strike: ANSI, 1-1/4" x 4-7/8", 1-1/4" lip, square corner

• Finishes: 26D Satin Chrome, 10B Oil Rubbed Bronze

• Resources: Marks USA Survivor Series PDF linked in Resources section