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 5965-01-433-9864
NSN 5855-00-472-2055
NSN 5950-00-850-5484
NSN 6320-01-054-3046
NSN 5935-01-032-1993
NSN 6645-00-522-4173
NSN 7035-01-364-0286
NSN 6105-01-245-8932
NSN 5990-00-221-0878
NSN 6220-01-302-1819
NSN 6135-01-122-4448
NSN 5950-01-108-3850