is lead lining available on ND series

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Answer
XL11-515 is an option for lead lining on the L9000 series mortise locks. XL12-216 is an option for lead lining on the L400 mortise locks.
Not specifically for lead lined doors.  But the standard hinges should work and not hit the lead lining in the door.  Since standard lead layers vary, check with door manufacturer an...
Ives does not offer any lead lined pivots.  Some of the Ives pivots can be used on lead lined doors such as the 7230F, 7237F, 7230F/7237F Int.  The hole pattern for the mounting screws are offs...
Lead lining is not needed, since the channel or through bolt is solid and the x-rays will not penetrate the solid metal.
The ND lead lined option is specified by XN12-307 and consists of two 1/16” thick rose plates, a single 1/8” button/cylinder plate and a 1/16” latch sleeve.
ND-series locks manufactured on or after January 30, 2017 will ship with an improved spring cage and matching lever design. The design features are noted below. Because of this change, there a...
NOTE: ND locks manufactured on or after January 30, 2017 will no longer make use of the soft durometer spacer. The improved spring cage and matching lever eliminates the need for this spacer.Schlag...