The Model 8077AD is a combination padlock that meets Federal Specification FF-P-110J and is used in large quantities by government agencies to secure file cabinet locking bars. It is designed to resist surreptitious entry methods and show any signs of tampering. It can be set to new combinations using the included change key.
NSN: 5340-01-217-2009 and GSA 5340-00-285-6523
and DLA 5340-01-196-2568
Federal Specification: FF-P-110J