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 5925-01-107-5065
NSN 5975-00-351-6114
NSN 5855-01-230-4665
NSN 5990-01-242-9653
NSN 6685-01-314-2907
NSN 5905-01-518-5088
NSN 6610-01-232-0814
NSN 6110-01-076-4060
NSN 6110-00-350-1411
NSN 5835-01-312-4446
NSN 5855-00-951-6483
NSN 6130-01-272-9700