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 5975-00-180-8255
NSN 5910-01-440-9558
NSN 5835-01-116-2369
NSN 5910-00-118-1928
NSN 2925-00-710-6161
NSN 5895-00-003-9137
NSN 5920-01-042-9351
NSN 6110-01-492-9694
NSN 6610-01-105-8271
NSN 5945-01-537-1430
NSN 6685-00-520-4767
NSN 4140-00-934-8800