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 6320-00-905-0543
NSN 2925-00-394-2332
NSN 6240-01-258-6298
NSN 6220-01-609-1917
NSN 7035-01-033-3007
NSN 6240-01-064-9727
NSN 6130-01-610-9647
NSN 6130-01-437-6050
NSN 5920-01-416-4274
NSN 5895-01-545-6832
NSN 6130-01-594-9810
NSN 5960-01-426-4242