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 6650-01-060-1089
NSN 5935-00-150-8603
NSN 5905-00-644-9983
NSN 5996-01-245-7123
NSN 5996-01-198-7706
NSN 6135-01-231-4809
NSN 6240-00-840-3647
NSN 6110-00-402-7637
NSN 5990-00-679-6157
NSN 6320-00-500-4172
NSN 6620-00-621-6951
NSN 5975-01-277-3387