102 / | HD | AMMUNITION AND EXPLOSIVES |
200 | DF | IGNITING DEVICES AND SYSTEMS {15} |
221 | DF | .~ Arming devices {2} |
222 | DF | .~.~ Blocking or interrupting type {7} |
247 | DF | .~.~.~ Inertia operated {3} |
252 | DF | .~.~.~.~ Impacting device latch {1} |
253 | .~.~.~.~.~ Ball and detent |