An intravenous, IV, tubing fitment , comprising: a unitary body configured to couple with a fluid delivery device including a body forming, in part, a mating recess and a door , wherein the door forms part of the mating recess , the unitary body comprising: a first end configured to couple to a first portion of a tubing, a substantially hemispherical surface adjacent to the first end , and a cylindrical body adjacent to the substantially hemispherical surface , the cylindrical body including a plurality of wings and configured to receive a second portion of the tubing; and wherein the unitary body is configured to be received into the mating recess of the fluid delivery device such that: the substantially hemispherical surface is configured to be uniformly mated with a substantially identical surface of the mating recess , the cylindrical body is configured to be positioned outside of the mating recess , when the door is moved to a closed position from an open position while the unitary body is not mated with the mating recess, the door is prevented from coupling with the body of the fluid delivery device, and when the door is moved to the closed position from the open position while the unitary body is mated with the mating recess , the unitary body is configured to be enclosed in a pocket of the fluid delivery device . a unitary body configured to couple with a fluid delivery device including a body forming, in part, a mating recess and a door , wherein the door forms part of the mating recess , the unitary body comprising: a first end configured to couple to a first portion of a tubing, a substantially hemispherical surface adjacent to the first end , and a cylindrical body adjacent to the substantially hemispherical surface , the cylindrical body including a plurality of wings and configured to receive a second portion of the tubing; and a first end configured to couple to a first portion of a tubing, a substantially hemispherical surface adjacent to the first end , and a cylindrical body adjacent to the substantially hemispherical surface , the cylindrical body including a plurality of wings and configured to receive a second portion of the tubing; and wherein the unitary body is configured to be received into the mating recess of the fluid delivery device such that: the substantially hemispherical surface is configured to be uniformly mated with a substantially identical surface of the mating recess , the cylindrical body is configured to be positioned outside of the mating recess , when the door is moved to a closed position from an open position while the unitary body is not mated with the mating recess, the door is prevented from coupling with the body of the fluid delivery device, and when the door is moved to the closed position from the open position while the unitary body is mated with the mating recess , the unitary body is configured to be enclosed in a pocket of the fluid delivery device . the substantially hemispherical surface is configured to be uniformly mated with a substantially identical surface of the mating recess , the cylindrical body is configured to be positioned outside of the mating recess , when the door is moved to a closed position from an open position while the unitary body is not mated with the mating recess, the door is prevented from coupling with the body of the fluid delivery device, and when the door is moved to the closed position from the open position while the unitary body is mated with the mating recess , the unitary body is configured to be enclosed in a pocket of the fluid delivery device . <EOS>