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).