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General Services Administration-approved safes and vaults are certified high-security safes and vault doors for military and embassy applications. Each vault door under this specification meets stringent criteria and has passed the qualification tests and inspections performed at a Government test facility for the General Services Administration.
Sargent & Greenleaf, Inc., more commonly known among Safe and Vault technician circles as S&G, is a U.S. company that manufactures combination locks, key-operated safe and safe deposit box locks, high security military padlocks, and associated equipment.
To the right of the door's center are two linked boxes for the combination mechanisms and to the left is a four-movement time lock. This door has a four-point system for pressing the door into its opening (note the two stanchions left of the door opening) capable of exerting one third of the door's weight in closing force. Since this door ...
A Wordlock letter combination lock.. A combination lock is a type of locking device in which a sequence of symbols, usually numbers, is used to open the lock. The sequence may be entered using a single rotating dial which interacts with several discs or cams, by using a set of several rotating discs with inscribed symbols which directly interact with the locking mechanism, or through an ...
A fire-resistant safe is a type of safe that is designed to protect its contents from high temperatures or actual fire. Fire resistant safes are usually rated by the amount of time they can withstand the extreme temperatures a fire produces, while not exceeding a set internal temperature, e.g., less than 350 °F (177 °C).
In high-security buildings, access control systems are sometimes set up so that ability to open one door requires another one to be closed first. Such setups are called a mantrap. Interlocks can be used as a high level entrance security. There are two kinds of interlocking systems for security.