Ordered 2 of these. Same part number on package but they were different parts. The shape of the fittings were different and one had an O-ring. They were functionally the same but obviously not...
James E
06.03.2017
Very nice item! Great quality and very use full in changing to a different size. I have used 4 on my build
Mike V
31.01.2018
While it doesnâ??t state so, this is a 2-piece â??swivelâ? fitting so donâ??t be surprised. Talking to manufacturer, the two-piece swivel fitting is required for aviation applications because the male side is allowed to swivel (or rotate) after locking into the male fitting you have inserted into female side. The female side then is allowed to turn around the male fitting you have inserted. If it wasnâ??t two part swivel, the mating surfaces would score each other as you tightened down, increasing risk of leak. So two piece swivel, C431-4, is what you want for aviation.