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 6685-01-359-5732
NSN 5999-00-971-6832
NSN 6620-01-106-2814
NSN 5925-00-343-6747
NSN 5999-00-548-2060
NSN 6220-01-343-2204
NSN 6110-00-747-9269
NSN 5999-01-255-8632
NSN 5905-01-589-8112
NSN 6110-00-949-4977
NSN 6150-00-701-3304
NSN 5950-00-679-9539