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 6685-01-106-7436
NSN 5975-01-470-1161
NSN 6110-00-471-3385
NSN 7035-01-013-9889
NSN 6320-01-425-1417
NSN 5990-01-459-5482
NSN 6645-01-118-5300
NSN 5945-00-840-7055
NSN 5910-01-605-1469
NSN 6320-01-521-1764
NSN 5950-00-077-0011
NSN 5855-01-306-2565