KSP 316 Series - 6-Pin SFIC Tapered Head Mortise Housing

The KSP 316 Series is a mortise housing that accepts a 6-pin small format interchangeable core (SFIC). The core by itself has no way to drive a mortise lock, so the housing gives it the body and the cam that turns the lock's hub. If you are putting an SFIC core into a mortise lock case, you need a housing like this; if you are putting one into a rim device or a key-in-knob prep, you need the matching rim or KIK housing instead, not a mortise housing.

1-1/4 inches. That is the common short mortise housing length, and it is what most standard mortise lock cases are prepped for. If your door or lock case calls for a deeper housing, the 1-1/4 inch will sit shallow and the cam may not engage.

It ships with a standard cam, and the cam is staked on, meaning it is not interchangeable. If your lock needs a different cam profile, order the housing already built with that cam rather than planning to change it in the field.

They are two different halves of the same assembly and neither replaces the other. The KSP 316 is a 1-1/4 inch tapered head mortise housing for a 6-pin small format interchangeable core, supplied with a non-interchangeable staked-on standard cam. It is the shell that mortises into the door or cabinet and drives the cam; it does not include a core or any pins. The Corbin Russwin 8000-CT6 BLUE is the other half - a 6-pin interchangeable core, in this case a blue construction core. A complete working mortise cylinder needs a housing like the 316 plus a 6-pin SFIC core seated in it.

The tapered head on the 316 Series lets the housing seat into a tapered cylinder collar or escutcheon opening so the face sits flush with the trim. If the lock you are working on uses a straight, flat-faced collar, a tapered head will not sit right, so match the head style to the trim already on the door.

That is the point of small format interchangeable core. One 6-pin SFIC core keyed to your system pulls out with a control key and drops into any other SFIC-prepped device, so the 316 housing lets a mortise lock join the same keying scheme as your rim exit devices and padlocks. The housing stays in the lock; only the core moves.

Use a construction core in the housing during the build and swap it for the permanent core at turnover. The Corbin Russwin 8000-CT6 BLUE is a 6-pin interchangeable core in a blue construction core configuration, and being 6-pin small format it seats in the KSP 316 6-pin SFIC tapered head mortise housing. The housing itself stays in the door for the life of the opening - only the core comes out with the control key - so the 316 with its staked-on standard cam is specified once and the core changes over it.

No. The KSP 316 mortise housing has a non-interchangeable staked-on cam in the standard configuration, so the cam cannot be removed and swapped for another cam style in the field. If the hardware calls for a different cam, the housing itself has to be specified accordingly rather than modified. What does remain field-changeable is the core: any 6-pin small format interchangeable core, such as the Corbin Russwin 8000-CT6 BLUE 6-pin interchangeable core, pulls and replaces with a control key without touching the housing or the cam.

Satin chrome. Since the housing sits inside the mortise lock case with only the core face showing through the trim, the finish is mostly about matching the core and cylinder collar you pair it with.

The KSP 316 is built as a 6-pin SFIC mortise housing, so pair it with 6-pin small format cores such as the Corbin Russwin 8000-CT6 BLUE 6-pin interchangeable core. Small format cores are figure-eight shaped and look nearly identical across pin counts, so on a facility that runs a mix it is worth confirming the pinning of the core stock before it goes in. Ordering the housing and the cores to the same 6-pin standard keeps the control key and core swaps consistent across the openings.