Thread Specification: M16x1.5 metric thread matches the specified male thread size and pitch for direct mechanical compatibility with corresponding female threaded components. Fitting Type: AN6 6AN male fitting provides standardized aerospace-style connection geometry and sealing interface as indicated in the title. Adapter Function: Straight adapter enables direct, inline transition between M16x1.5 threaded components and AN6 6AN male fittings without angular deviation. Material Composition: Aluminum construction aligns with the stated material requirement and supports weight and thermal characteristics consistent with the specification. Finish: Black finish corresponds to the described treatment and provides visual and environmental consistency with the referenced part., Manufacturer: DhnvGCSge