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 2925-01-274-7429
NSN 5905-01-227-1783
NSN 6150-01-202-8214
NSN 2925-01-572-9472
NSN 6645-00-679-8203
NSN 5915-01-514-7136
NSN 6220-01-458-0909
NSN 5999-01-481-7665
NSN 5835-01-130-3760
NSN 6645-01-212-9474
NSN 5855-01-506-6767
NSN 5835-01-294-9691