An SFIC is the removable key plug that drops into a figure-8 core cavity in a lock, cylinder housing, or exit device trim, and comes out with a control key rather than a screwdriver. The Stanley Security 7-pin small format interchangeable core is the core itself, not a housing and not a complete cylinder, so it needs an existing SFIC-prepped housing or lock to live in. On rim exit device applications the housing is a separate part, for example the Arrow 16RCR-27 SFIC rim housing for 6/7-pin cores.

It ships uncombinated, meaning no pins, no springs loaded to a combination, and a blank core face. A locksmith or an in-house shop combinates it to the keying schedule, and combinating kits are made for the job. If you want cores that arrive working out of the box, this is not the part to order. When it is keyed, it is keyed different, so each core takes its own key rather than sharing one across a group.

Fourteen keyway letters are orderable: A, B, C, D, E, F, G, H, J, K, L, M, Q and TB. The wider Stanley family runs 26 keyways in total. Match the keyway to the keys and cores already in the building, because a core in the wrong keyway will not accept your existing key blanks no matter how it is combinated. If you are standardizing a new facility, pick one keyway letter and hold it across every order.

The core is built as a 7-pin, and the Stanley small format core line is offered in both 6-pin and 7-pin configurations. Seven-pin matters when your master key system already uses a 7-pin chamber layout; a 6-pin system's keys will not operate a 7-pin core. Check the pin count of the cores you are replacing before you commit to a quantity.

The core only controls key operation. If the key turns but the device does not latch or release, the problem is mechanical and the core is not the fix. Latching failures at the top of the door point to a top latch, such as the Accentra 7110/7120 exit device top latch component, or a deadlatch like the Falcon T Series 2-3/8 inch square corner deadlatch. If the fault is with dogging by key, Von Duprin sells a cylinder dogging conversion kit for 36 inch and 48 inch 33A devices. Order the core when you are rekeying or replacing a worn or compromised key plug.

No - the two are different halves of the same assembly. The Arrow 16RCR-27 is an SFIC rim housing built to accept a 6- or 7-pin small format core. The Stanley Security part is the core itself: a brass body with a zinc face, delivered uncombinated and available in 6-pin and 7-pin configuration. A locksmith replacing a worn or rekeyed core orders the core; a locksmith adding a rim cylinder position to an exit device orders the housing, then drops a core into it.

Two: satin chrome and satin brass. On the ordering options they read as US26D satin chrome and US4 satin brass, which the Stanley finish coding lists as 626 and 606. US26D satin chrome is the standard commercial pairing with brushed stainless and aluminum hardware; US4 satin brass goes with brass trim. Only the core face shows once it is installed, so the match only needs to satisfy the eye at the cylinder, not the whole door.

Yes, it is classified as a mortise cylinder core, so it goes into an SFIC mortise housing rather than being a standalone mortise cylinder you thread into a lock case. You still need the housing with the correct length and cam for your lock. If your opening needs a rim application on an exit device instead, order a rim housing such as the Arrow 16RCR-27, which takes 6- or 7-pin small format cores.

Turnover. With an SFIC, a tenant change or a lost key means pulling the core with a control key and dropping in a freshly combinated one, without taking the lock apart or pulling a door out of service. Buy the cores uncombinated in one keyway, keep a combinating kit and a small stock on the shelf, and a rekey becomes a two-minute job by your own maintenance staff. The tradeoff is that you take on the keying work: these arrive uncombinated with a blank face and do nothing until someone pins them.

Small format housings accept both 6- and 7-pin cores, since the Stanley small format line is built in both configurations and rim housings like the Arrow 16RCR-27 are stated for 6/7-pin. The constraint is not the housing, it is the key system: a 7-pin core needs a 7-pin key. Swapping a 7-pin core into a housing on a 6-pin master key system will leave the existing keys dead in that opening.

The Arrow 16RCR-27 rim housing is made for 6/7-pin small format interchangeable cores and belongs to the Arrow 24/25 Series. The Stanley Security small format interchangeable core is offered in 6-pin and 7-pin configuration, in satin brass (US4) and satin chrome (US26D), across keyways A, B, C, D, E, F, G, H, J, K, L, M, Q, R and TB. It ships uncombinated, so the keyway is chosen at order time and the core is combinated to the facility's key system before it goes into the housing.

Those are two separate line items. The Von Duprin 040070/040071 is the Grade 1 cylinder dogging with indicator conversion kit for 36 inch and 48 inch 33A exit devices, and it is not fire rated, so it suits a non-fire opening. The Stanley Security small format interchangeable core is the keyed element that a cylinder position accepts, supplied uncombinated in 6-pin and 7-pin configuration. A contractor converting a 33A device to keyed dogging orders the conversion kit for the mechanism and a core for the keying.

Commercial. The body is brass with a zinc face, which is the normal construction for a core that gets pulled and swapped repeatedly over a building's life. That construction is why it holds up in schools, hospitals, and multi-family where cores get rekeyed on turnover rather than replaced.

Order one core per cylinder you are keying, all in the same keyway letter and the same pin count. Because these are keyed different rather than keyed alike, a shared key across the building comes from how your locksmith pins and masters them, not from how they ship. Give your keying schedule to whoever combinates them before the cores arrive so the bitting is ready.