Abstract: Secure assembly of a tube coupled to a body having a bore. The coupling is provided by an insert mounted in the bore, a releasable internal retainer for retaining the tube in the bore, and a release member slidably moveable in the bore, the release member being pushable into the bore to release the retainer for uncoupling the tube from the body. A spacer is provided to prevent the release member from being pushed in. The spacer includes a clip portion inserted in a groove formed between a stationary surface of the body or the insert and an opposing shoulder surface of the release member which projects outside of the bore. The clip portion is connected by at least one breakable bridge portion to a locking portion which abuttably engages the tube to prevent the clip portion from being removed unless the bridge portion is broken by a user.

Abstract: Secure assembly of a tube coupled to a body having a bore. The coupling is provided by an insert mounted in the bore, a releasable internal retainer for retaining the tube in the bore, and a release member slidably moveable in the bore, the release member being pushable into the bore to release the retainer for uncoupling the tube from the body. A spacer is provided to prevent the release member from being pushed in. The spacer includes a clip portion inserted in a groove formed between a stationary surface of the body or the insert and an opposing shoulder surface of the release member which projects outside of the bore. The clip portion is connected by at least one breakable bridge portion to a locking portion which abuttably engages the tube to prevent the clip portion from being removed unless the bridge portion is broken by a user.