four lengths of 21.1/2″ od x 0.559″ wt carbon steel 50D pipe face two ends of two lengths to 188.1/2″ and two to 227.1/5 bore 20.38″ plus or minus 0.01″ x 6.1/2″ length form 5 degree transition between bored and unbored diameters form 38 degree (from fac