19X1.2 Oring 19mm ID X 1.2mm CS VMQ PVMQ SILICONE ShA 60 Black O-ring Oring Sealing O ring Rubber - AliExpress
OR 19X1,78 N - O-Ring, 19,00x1,78 mm, NBR ( 70A)
Amazon.com: JUN-STORE O-Rings CS1.5mm 100PCS FKM Rubber O Ring OD 10/11/12/13/14/15/16/17/18/19x1.5mm O-Ring Fluorine Gasket Oil Seal Green O Ring SENMIAO-TH (Size : OD12x1.5mm) : Industrial & Scientific
O-RING,19X1.9 for ATC200ES BIG RED 1984 (E) USA - order at CMSNL
MT MOR-19X1 - 19mm X 21mm 70 Buna O-Ring (10 Pack) | eBay