FF-L-2890, FEDERAL SPECIFICATION: LOCK EXTENSION (PEDESTRIAN DOOR, DEADBOLT (29 NOV 1997)

FF-L-2890, FEDERAL SPECIFICATION: LOCK EXTENSION (PEDESTRIAN DOOR, DEADBOLT (29 NOV 1997)., This specification covers pedestrian door deadbolts (PDD�s) for use with changeable combination locks and strikes. Pedestrian door deadbolts include designs that meet the Americans with Disabilities Act (ADA) and Uniform Federal Accessibility Standards (UFAS).