e/Obturating ring

Information
has gloss	eng: :For other uses see Obturator An obturating ring is a ring of relatively soft material designed to obturate under pressure to form a seal. Obturating rings are often found in artillery and other ballistics applications, and similar devices are also used in other applications such as plumbing, like the olive in a compression fitting. The term "O-ring" is sometimes used to describe this kind of pressure seal.
lexicalization	eng: obturating ring
instance of	c/Firearm components

Meaning
Russian
has gloss	rus: Обтюратор — предотвращает прорыв пороховых газов через зазор между пояском снаряда и поверхностью канала ствола в начале выстрела.
lexicalization	rus: Обтюратор