The end connection identified above as the first end is the valve inlet
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 5945-01-177-4639
NSN 5930-01-040-9845
NSN 5915-01-107-5136
NSN 5905-01-364-1160
NSN 6620-01-048-4145
NSN 6220-00-053-5599
NSN 5935-00-157-1198
NSN 6150-00-718-8925
NSN 6610-01-657-1773
NSN 5935-00-353-3293
NSN 5925-01-569-2452
NSN 5910-01-018-7885