Definition(s)
Pressure-Retaining Part or Pressure-Retaining Member
Part not exposed to wellbore fluids whose failure to function as intended will result in a release of wellbore fluid to the environment. EXAMPLES Closure bolts and clamps.
Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global Standards