api 5000API Specification 6A covers wellhead and tree equipment as follows: API Specification 6A Wellhead Equipment Valves, Chokes, and Actuators Plugs, Connectors, and Gaskets OtherAPI Flange Wehts and Dimensions. Search. Skip To Content [email protected] 1-800-256-1292 Request a Quote MTR Login. 1-800-256-1292 [email protected] Search RFQ. ... 5,000 PSI - Type 6B API 6A - Table E.3 . Nominal size of