A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5910-01-329-1725
NSN 5930-01-265-0877
NSN 6645-01-317-6071
NSN 5999-00-529-6067
NSN 5930-00-916-7228
NSN 6645-01-025-1002
NSN 5998-01-341-9283
NSN 5835-00-391-8655
NSN 5999-00-006-2043
NSN 5915-01-412-8667
NSN 5990-00-137-3971
NSN 5950-01-122-9117