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 5835-01-140-9306
NSN 6220-01-133-2539
NSN 7035-01-106-3476
NSN 5950-01-529-4279
NSN 5935-00-577-0510
NSN 6620-01-310-4916
NSN 5920-01-407-1091
NSN 6110-01-298-4664
NSN 6610-00-244-2816
NSN 2925-01-118-6125
NSN 6685-01-363-0516
NSN 6105-01-512-7032