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S&G 831 B-M-1

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KokomoLock

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Post Tue Feb 16, 2010 3:24 am

S&G 831 B-M-1

Here is a Sargent and Greenleaf 831 B-M-1 military padlock with a 6 pin Medeco biaxial cylinder. The lock was won of ebay with no key so I had to pick it and custom mill a Medeco biaxial key to fit the lock. When the operating key is turned the locking cam rotates out of the grooves on the shackle and the lock opens. The control key is an operating key with the top and bottom shoulders removed.

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Front of lock.

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Side view with retainer plug.

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Open with control key and retainer plug coming out.

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Lock open and locking cam shown.

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3 internal parts of lock.

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Back of the Medeco cylinder.

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Retainer plug bottom.

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Retainer plug top.

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Locking cam top.

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Locking cam bottom.

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Inside lock with cylinder removed.

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Milled Key.

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Milled Key.
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jruther2

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Post Tue Feb 16, 2010 3:27 am

Re: S&G 831 B-M-1

Fantastic pictures! If you had not gotten that lock I still wouldn't have a key for mine...you are my hero! :D
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elbowmacaroni

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Post Tue Feb 16, 2010 3:50 am

Re: S&G 831 B-M-1

As always nice work man! Gotta love the lock porn.
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the lockpickkid

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Post Tue Feb 16, 2010 4:29 am

Re: S&G 831 B-M-1

How did you mill out a key to make it fit your warding? Did you use a Framon type high security duplicator to mill it with or what? It looks great.
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KokomoLock

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Post Tue Feb 16, 2010 4:40 am

Re: S&G 831 B-M-1

the lockpickkid wrote:How did you mill out a key to make it fit your warding? Did you use a Framon type high security duplicator to mill it with or what? It looks great.


Thanks, I used an ESP 339C Sidewinder Duplicator as a mill to fit the key to the lock.

http://www.hudsonlock.com/ESP/key_machines.html
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.45cal

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Post Tue Feb 16, 2010 6:01 am

Re: S&G 831 B-M-1

You never cease to amaze me !

You are one skilled guy good job when I grow up I want to be just like you.
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loki

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Post Tue Feb 16, 2010 10:53 am

Re: S&G 831 B-M-1

Brilliant !

A defining work. This feat brings new definition to fitting-a-key.
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Warder

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Post Tue Feb 16, 2010 1:04 pm

Re: S&G 831 B-M-1

Professional, impressive and a great post. Thank you for the contribution.
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the lockpickkid

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Post Tue Feb 16, 2010 2:14 pm

Re: S&G 831 B-M-1

KokomoLock wrote:
the lockpickkid wrote:How did you mill out a key to make it fit your warding? Did you use a Framon type high security duplicator to mill it with or what? It looks great.


Thanks, I used an ESP 339C Sidewinder Duplicator as a mill to fit the key to the lock.

http://www.hudsonlock.com/ESP/key_machines.html


Thats a great idea, it looks near factory. Nice way to improvise!
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uklockpicker

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Post Tue Feb 16, 2010 4:16 pm

Re: S&G 831 B-M-1

Nice one :D nice pics and s & g - looks a very well made replacement key :) even tho it says do not duplicate on the key ! what you ment to do when you have no key ! - great project in super quick time no dout ;)
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Solomon

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Post Tue Feb 16, 2010 6:13 pm

Re: S&G 831 B-M-1

Great pics and breakdown kokomo! Nice job on the key aswell. :)
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ToolyMcgee

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Post Tue Feb 16, 2010 9:29 pm

Re: S&G 831 B-M-1

Great job picking that tank! Nice photo breakdown too. Sorry your cheater machine couldn't make better looking keys :mrgreen:
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s1deshowmick

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Post Thu Feb 18, 2010 2:27 am

Re: S&G 831 B-M-1

That's a nice lock huh, I was lucky enough to get a brand new 831 B-M-1 of eBay with 2 operating and 1 control key.
I haven't been able to put it down since i got it.
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cowbite

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Post Tue Mar 23, 2010 1:48 am

Re: S&G 831 B-M-1

Man that's impressive as hell. Awesome!
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macgng

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Post Sun Feb 13, 2011 2:56 am

Re: S&G 831 B-M-1

AWESOME! i just got one yesterday. ive been looking at lots of pix cause i only have the control key, but i have a few medeco cylinders with keys laying around. i was wondering if it would be possible to machine the back of a regular medeco KIK cylinder to fit the 831 cam??

what do you guys think??
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