packing retainer ring
/ˈpakɪŋ ɹɪtˈeɪnə ˈɹɪŋ/
n
English · packing retainer ring中文 · 填料压环Español · anillo de retención de la empaquetaduraFrançais · bague de fond
意味：Plastic part inserted into the body to keep the washer on the ball and to prevent leakage in the faucet.