Brass Short Shank Type Fitting, 0.19 Inch Hose ID to 1/8-27 Male NPT, Straight

It’s made for a 0.188 inch hose ID on the shank side and it has a 1/8-27 male NPT thread on the other end, in a straight configuration.

Short shank brass fittings like this one are built for low pressure fluid transfer, both suction and discharge lines. The hose ID is 0.188 inch, so you want a hose that matches up to that size. How much pressure it'll actually handle comes down to a few things working together, the hose construction itself, how many clamps you're using, where those clamps are placed, and whether everything gets installed right. Temperature and whatever fluid you're moving through it factor in too. So it's not a one number answer, but it's squarely in the low pressure category.