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 5950-01-144-5555
NSN 6320-01-377-0033
NSN 4140-01-518-0062
NSN 5905-01-567-7263
NSN 4140-01-387-9110
NSN 5960-01-579-1661
NSN 5945-01-463-9136
NSN 5915-01-330-1448
NSN 6610-01-476-7412
NSN 6150-01-452-7778
NSN 5910-01-467-5920
NSN 6650-01-067-0132