Abstract: A split coupling of clam-shell configuration applied laterally over abutted ends of confronting tube sections with bead-over-wire reinforcement engaged with opposed shoulders of separable body members, and having depressible ring and abutment seals molded into the separable body members hinged for abutment on a diametrical axially disposed plane coincidental with the axis of the body members when closed over said confronting tube sections by link and latch means, all basic structural members operating in tension and shear connections multiplied for greater strength and for uniform load distribution, said ring seals being scarfed for circumferential continuity, and there being an electrical bond between the coupling and said confronting tube sections.

Abstract: A split coupling of clam-shell configuration applied laterally over abutted ends of confronting tube sections with bead-over-wire reinforcement engaged with opposed shoulders of separable body members, and having depressible ring and abutment seals molded into the separable body members hinged for abutment a diametrical axially disposed plane coincidental with the axis of the body members when closed over said confronting tube sections by link and latch means, all basic structural members operating in tension and shear connections multiplied for greater strength and for uniform load distribution, said ring seals being scarfed for circumferential continuity, and there being an electrical bond between the coupling and said confronting tube sections.

Abstract: A coupling for thin-walled tubing, such as aircraft fuel lines, wherein a bearing ridge and O-Ring groove are preformed at the open tube end and wherein a coupling body, retaining nut and anchor ring are engageable over said bearing ridge and groove, the anchor ring being reversibly visible for inspection and in the form of an expansible doublesided buttress disengageably installed over the tube and combined with the retaining nut to abutt the said bearing ridge and related to the coupling body so as to have anti-extrusion features with respect to the O-Ring seal subjected to internal fluid pressures.