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 5999-01-570-3056
NSN 5835-01-107-8600
NSN 5855-01-506-4610
NSN 6135-00-962-4111
NSN 6130-01-187-6711
NSN 5925-00-938-1266
NSN 5960-00-412-1202
NSN 5975-01-243-1108
NSN 6130-01-569-2584
NSN 5960-00-579-0298
NSN 5910-01-582-9732
NSN 5965-00-482-7945