api 5000API 5K API 5K means an API-defined BOP confuration with a rated working pressure of 5,000 psi and as described in API RP 53, adopted by reference at 20 AAC 25.527(c). Source: AlaskaAPI 5000 Flange Dimensions Industries and Applications Widely used in the industries. Pumps, Valves, and vessels in manufacturing and food processing. Pipe