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I have a American 5200 US padlock that I've been using mostly for picking practice. I've opened it dozens of times, but today when I did, I messed something up... I somehow flipped the core around and siezed it up. I managed to wiggle and pick it until I could get it to rotate back where it belonged, and it seemed to work. It did stick though, the key would need some wiggling to make it turn. So I took it apart and removed the core, and something went wrong and even the key wouldn't turn it. So, after much fussing I said "F- this thing" and filed the bible down so I could remove the pins and try to see what went wrong. I didn't find the actual problem, but now I have a 5200 body that needs a new core. I haven't yet found a replacement core, so I'm wondering what I should do with this thing. Are replacement cores still available? If not, can any other cores be easily modified to drop into this lock body? Or should I just put the remainder of the lock in the Ol' Spare Parts Drawer and move on?

go to www.mrlock.com - they sell a Master keyway cylinder and corresponding actuator. The 5 pin American keyway cylinder is discontinued.

Some good ifo here : viewtopic.php?f=65&t=10137

Also the Bays the cores from the Abus 34/55 will fit in to I believe. I put one from the eBay "NYCHA" locks as the seller gave some extra cores when I asked, and I put it in a Harbor freight General body and then the person I gave it to put it in an American 1105 body.

That's disappointing, I couldn't find it on the site, but is the Master core a typical Master? If so, this thing might just become spare parts, lol!

Here you go
https://www.mrlock.com/american-lock-cy ... ption=true

I sent a few extra cores out, but I might have an extra I can send you. Gotta do some digging. I'll pm you if I do and send you one if available.

HL Flake still has them, roughly 100 in Stock between zero bitted, KA, and KD. They are charging almost $6 ea. ATPC12 I think is the part number.

APTC12 won't work...that's a 6 pin cylinder pinned 5.
APTC15 is/was a 5 pin cylinder pinned 5, slightly shorter than APTC12/14

JM

This Is From The Amercain Lock Servive Manual 2013

There is a special cylinder used in the 5200GL. It has 5 pins in it and it is only 5 pins in length, the part number
is APTC15.

Yout learn something new everyday.

Edited to edit the autocorrect.