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 5925-01-077-1032
NSN 4140-01-457-7108
NSN 6685-00-499-8965
NSN 6130-01-394-4153
NSN 5998-01-212-2658
NSN 5915-00-798-9141
NSN 6610-00-844-4871
NSN 6110-01-353-2472
NSN 5905-00-130-6729
NSN 5999-01-288-7303
NSN 6645-01-199-7553
NSN 6130-01-521-3034