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 2925-01-041-2360
NSN 5930-01-300-4063
NSN 4140-01-412-1566
NSN 5965-01-241-0553
NSN 6610-01-355-8112
NSN 6320-01-125-3361
NSN 5975-00-892-8890
NSN 6145-00-564-5591
NSN 6145-00-340-6698
NSN 5905-00-103-4263
NSN 5965-01-008-5351
NSN 5895-01-431-7349