Match your material to your operational environment:

Buna-N (Nitrile): Best for standard oil, hydraulic fluid, and petroleum applications.

EPDM: Best for water treatment, steam, and outdoor weather exposure.

FKM compatible to Viton: Best for high-temperature applications or or aggressive chemical/fuel exposure.

In heavy drilling applications, this O-ring is used as a seal within high-pressure gearboxes, variable speed cooling fans, and hydraulic pump sub-assemblies (such as PVH pump control kits).