KSP 306 Series - 6 or 7-Pin SFIC Mortise Housing
- 1-1/4" 6-Pin SFIC Mortise Housing, Non-Interchangeable Staked on Cam - STD Cam

Manufacturer Resources
Product Specs
- Product Group:
- Parts and Accessories
- Product Subgroup:
- Parts and Accessories
- Subcategory:
- Parts and Accessories
- Product Type:
- Interchangeable Core
- Product Category:
- Parts and Accessories
- Department:
- Door Hardware
KSP 306-600-26D – Frequently Asked Questions
1) What is a KSP 306 mortise housing and do I need a core with it?
The KSP 306 is the mortise housing that a small format interchangeable core drops into. It's the shell and cam assembly only, so you also need an SFIC core keyed to your system. The housing takes either a 6-pin or 7-pin SFIC core, which is the standard figure-8 core used across most SFIC systems.
2) What is the difference between the 600 standard cam and the 601 Adams Rite cam on the KSP 306 housing?
The cam is what actually drives the lock, and the two are not interchangeable. The 600 standard cam suits conventional mortise lock cam prep. The 601 is the Adams Rite cam, which is what you want when the housing is going into Adams Rite style narrow stile aluminum door hardware. Pick the cam to match the lock body you are driving, not the door.
3) Is the cam on the KSP 306 mortise housing replaceable, or is it fixed?
It's staked on and non-interchangeable. You cannot swap the cam in the field, so the cam choice is made at order time: 600 standard or 601 Adams Rite. If you stock these for a building, order them by cam type against the lock bodies you actually have, because a housing with the wrong cam is a return, not an adjustment.
4) What length is the KSP 306 SFIC mortise housing?
1-1/4 inch. That's the common mortise cylinder housing length, and it's what decides whether the housing seats correctly in the lock body's cylinder pocket. Measure what you're pulling out before ordering; if your existing cylinder is longer, this housing won't reach.
5) Can I use my existing 7-pin SFIC cores in this KSP 306 housing?
Yes. The 306 housing is built for either 6-pin or 7-pin small format interchangeable cores, so a facility already running 7-pin masterkeyed cores can keep the same core and just change the housing. The pinning stays in the core, not the housing, so your keying system is unaffected.
6) Is a Corbin Russwin 8000-CT6 blue construction core the same thing as a KSP 306 mortise housing?
No - they are two different halves of the same lock. The Corbin Russwin 8000-CT6 is a 6-pin interchangeable core, the removable figure-eight plug that carries the pinning and gets swapped with a control key. The KSP 306 is the mortise housing that core drops into: a 1-1/4 inch 6-pin SFIC mortise housing with a staked-on, non-interchangeable cam, offered with the 600 standard cam or the 601 Adams Rite cam and in oil rubbed bronze or satin chrome. If you are keying a door you need both - the housing threads into the lock or exit device and the core does the keying. Ordering the 306 alone leaves you without a core, and ordering a core alone leaves it with nothing to mount in.
7) I need a construction core for a jobsite before the permanent keying goes in. Is this housing the right part?
The housing isn't the keyed part. For temporary jobsite keying you want a construction core to drop into it, such as the Corbin Russwin 8000-CT6 blue 6-pin interchangeable core, then pull it and drop in the permanent core at turnover. The 306 housing stays in the lock through both.
8) I have a Corbin Russwin 8000-CT6 construction core on the job - what do I need to mount it in a mortise lock?
You need an SFIC mortise housing, which is what the KSP 306 series is: a 1-1/4 inch housing built for 6 or 7-pin small format interchangeable cores, with the cam staked on. Match the cam to the lock you are driving - the 600 standard cam for conventional mortise lock bodies, the 601 Adams Rite cam for Adams Rite style narrow stile hardware - because the cam is staked and cannot be changed in the field. Finish is oil rubbed bronze or satin chrome. Since the 8000-CT6 is a 6-pin core, either the 6 or 7-pin housing accepts it; the pin count belongs to the core, and the construction core is meant to be pulled and replaced with the permanent core at turnover.
9) What finishes does the KSP 306 mortise housing come in?
Two: Satin Chrome and Oil Rubbed Bronze. Both are offered with either cam, so you can match a dark bronze opening or a satin chrome one without giving up the Adams Rite cam. For a property manager standardizing a building, that's the pair to work with.
How fast can I get the KSP 306-600-26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
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Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the KSP 306-600-26D come with a warranty?
Absolutely. The KSP 306-600-26D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the KSP 306-600-26D?
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