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 5895-01-559-0719
NSN 6220-00-125-3805
NSN 6110-01-547-5315
NSN 2925-00-590-3450
NSN 6320-01-118-0553
NSN 5935-01-066-4126
NSN 5999-01-394-9034
NSN 6150-01-634-0575
NSN 5950-01-513-9108
NSN 6610-01-278-8377
NSN 6645-01-576-9896
NSN 5985-00-874-5696