That is the fit it is made for. The Schlage 09-774 is the small format interchangeable core driver and spacer for ND Series and AD Series locks, supplied in the 6-pin version. If the ND chassis on the door is prepped for SFIC, this is the driver and spacer that pairs with it.

No. The 09-774 is the 6-pin version. Small format interchangeable cores are built as either 6-pin or 7-pin stacks, and the driver and spacer have to match the stack the core is keyed to. On a 7-pin system, order the 7-pin driver and spacer instead of this one.

No. The 09-774 is a small format interchangeable core part. Full size (large format) interchangeable cores and conventional key-in-lever cylinders use different housings and different retention, so the SFIC driver and spacer has nothing to key off in those locks. It only belongs in an ND or AD Series lock prepped for SFIC.

What you get is the driver and the spacer, the internal pieces that let an SFIC core operate an ND or AD Series lock. The core itself is a separate part, keyed to your system by whoever holds the keyway. Order the 6-pin core alongside this if the lock does not already have one.

For the 6-pin SFIC driver and spacer, yes. The Schlage 09-774 covers both the ND Series and the AD Series, so a facility running mechanical levers on the back-of-house doors and AD electronic locks on the controlled openings stocks one part number for that piece rather than two.

The driver is the piece that picks up the throw member on the back of the small format interchangeable core and turns the lock; the spacer takes up the length between the core and the chassis so the driver sits where it should. Locksmiths order the 09-774 when converting an ND or AD Series lock over to SFIC, or when the original pieces went missing during a rekey or a core swap. Get the pin count right, this one is the 6-pin part.