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 6220-00-932-4992
NSN 5910-01-456-7102
NSN 6645-01-426-0206
NSN 2925-00-947-9814
NSN 6645-01-633-1852
NSN 5999-00-081-6721
NSN 5895-00-374-8333
NSN 6220-00-923-2660
NSN 6685-00-126-0368
NSN 5910-01-053-9508
NSN 6685-01-397-0117
NSN 6650-01-258-5871