Check the listing for details. Kaba MAS X-09 Round Deadbit High-Security Electronic Combination Lock Type 1F FF. Condition: Used. Listed at 1570.80 USD. Kaba MAS X-09 Round Deadbit High-Security Electronic Combination Lock Type 1F FF Pre-owned in great condition with normal wear & tear. The Kaba Mas X-0 series is the trusted choice for securing the US Government’s most sensitive material. The X-0 series was first introduced in 1992 as the lock to meet the strict requirements of Federal Specification FF-L-2740. This specification is the US Government’s highest security standard for electro-mechanical locks. The X-10 represents the latest edition to this secure tradition. The X-10 is the GSA (General Services Administration) approved lock for FF-L-2740, latest revision B, Style 1 applications. The X-10 is approved by the GSA for use on approved Class 5 and 6 filing cabinets and Class 5 Security vault doors. S/N: X09SR008612302008ARM Please refer to the pictures & video. There may be some items missing. What you see is what you get.