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 5996-01-547-9155
NSN 5945-01-330-6798
NSN 6240-01-351-6729
NSN 5915-00-528-9286
NSN 5925-00-617-2994
NSN 2925-01-233-8545
NSN 5855-01-609-1874
NSN 5935-01-147-9448
NSN 7035-01-584-1350
NSN 6685-01-290-3124
NSN 5930-01-037-3506
NSN 5975-00-318-1637