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 5835-00-738-1099
NSN 6620-01-308-2692
NSN 5998-00-925-2567
NSN 5930-00-500-6019
NSN 5950-01-513-9995
NSN 6150-01-228-0184
NSN 6650-01-076-6685
NSN 5999-01-117-5534
NSN 5999-01-495-1940
NSN 5998-00-369-7285
NSN 5945-00-187-1939
NSN 5910-01-648-9555