подвижная трубка (see context before answering)

Russian to English Other Military / Defense

The context is parts of a grenade. This is real minutiae which is usually not in common lexicon. So please use the resources you have available on grenades.

"Во время полета предохранительная планка гранаты отбрасывается сопротивлением воздуха и увлекает за собой иглу. Игла освобождает петлю, которая удерживала подвижную трубку. После вылета иглы, ударный механизм подготовлен к работе."

The reference for grenade I am translating.


Note that in the index there is the "подвижная трубка" and "неподвижная трубка" encapsulating it.

Resources that may be helpful to get your mind gears working

labels made by an experienced sapper based in europe.

Another image of a different grenade by the same experienced sapper.

Patent drawing with grenade parts.

Another patent drawing


Grenade parts a US Army manual