Abstract: Components of drilling and production systems with wide flange bodies are provided. In one embodiment, an apparatus includes a component (40, 124, 126, 128) of a wellhead assembly (18) or of a riser (16) of a drilling or production system, the component having a non-tubular main body (42, 130, 140) and a bore (44, 132, 144) extending axially through the main body to allow fluids to flow through the main body via the bore. Rather than having a flanged neck fixedly extending the bore from the main body with a connection flange below or above the main body, the component includes a lateral flange (50, 134, 146, 160) extending outwardly from an exterior surface of the main body such that the lateral flange is positioned alongside the main body. Additional systems, devices, and methods are also disclosed.