The purpose of this document is to provide the aerospace industry with standardized dimensional criteria for static radial elastomeric O-ring seals glands. It supplements ARP 1231, "Gland Design, Elastomeric O-ring Seals, General Considerations". This document establishes standard gland dimensions for static radial O-ring seal applications and provides recommendations for modifying these glands in applications. No provisions are made in this document for anti- extrusion devices. SI unit conversions for U.S. customary units have been provided for reference purposes.