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 6650-01-432-1830
NSN 6135-00-134-6648
NSN 6145-01-057-8344
NSN 5915-01-391-8810
NSN 5915-01-633-9845
NSN 6685-01-168-7712
NSN 5996-01-438-6544
NSN 5920-01-275-0743
NSN 6320-01-426-8947
NSN 6110-01-407-2130
NSN 4140-00-466-9268
NSN 5895-00-222-5043