Stallings Industries Inc. has provided custom and standard O-Rings for thirty-five plus years in English dash sizes to Din standard to Metric and we ship O-Rings worldwide.
We stock O-Rings in Buna, EPDM, Viton in all dash sizes. In addition, we offer silicone, perfluoro elastomers such as Kalrez, Chemraz, as well as FEP/PTFE coated O-Rings. These FEP/PTFE coated O-Rings offer the best chemical resistance and reliability in hatches that are opened and closed on a regular basis.
Custom O-Rings of non-standard sizes are available from Stallings Industries in many compounds including Buna, Neoprene, EPDM, Aflas, Viton, silicone and butyl.
NSF 61 O-Rings are also available as well for the pharmaceuticals and food and beverage industries. These O-Rings are prepared in clean rooms and are packaged according to precise specifications.

Teflon Encapsulated O-Rings
Perfluoro elastomer is a fully fluorinated elastomer which chemically is very similar to polytetrafluoroethylene (PTFE) with the trade name Teflon®.

Viton, Buna, & Neoprene Standard Individual O-Rings

Viton, Buna, & Neoprene Standard Individual O-Ring Kits
We regularly prepackage O-Rings into kits to suit your needs.