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 7035-01-383-6549
NSN 6645-01-244-4881
NSN 6220-01-449-9651
NSN 6135-01-613-8043
NSN 5975-01-623-1252
NSN 2925-00-942-2417
NSN 6150-01-526-4475
NSN 5895-01-448-6232
NSN 6150-00-269-4851
NSN 6220-01-341-5322
NSN 6320-01-252-2307
NSN 6650-01-616-2908