Product number:

O 5X4 FKM

Sizes:

5X4

Catalog:

Catalog #1: https://ecatalog.fst.com/seals/all/o-rings/or-dhh/67192562/dichtomatik-o-ring-80-fkm-fp801801-black-5-x-4-mm-iso-3601-bn-att-a/?categorypage=29