About the O-Ring Handbook

The O-Ring Handbook is published by The O-Ring Store LLC, an ISO-certified distributor that has specialized in O-Rings, seals, and kits for 19 years. Everything in this reference comes from people who sell and ship these parts every day, not from generic web copy.

Who writes this

The handbook is written and maintained by Marty C Frostad and Daro Frostad. Between them they answer real customer sizing, material, and application questions daily, and that is exactly the material that becomes these pages: which compound survives a given fluid and temperature, what dash number a customer actually needs, and how to install a seal so it lasts.

Why trust it

• 19 years focused on O-Rings, seals, and kits.
• ISO-certified distributor.
• Reference data cross-checked against manufacturer technical manuals and industry standards (AS568, ISO 3601, and others).
• Backed by a real, contactable business, not an anonymous content site.

Reach us

The O-Ring Store LLC 1847 Wilma Dr, Clarkston, WA 99403 Phone: (208) 413-6377 Email: sales@theoringstore.com Hours: Monday to Friday, 8 to 5 PT

Shop the full catalog at theoringstore.com, or send us your application and we will help you choose.