This key code is used on an oval style lock made by Hudson lock for HON Office products. Key will be pre-cut and ready to work in the lock. If in doubt, use the line drawing of the key way shown in the key blank example and compare it to the keyway of your lock.
Your lock may look like the one below. This is shown for reference only. This listing is for a key- not a lock
Example Lock 
0-500 Key Codes, Replacement Keys
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