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 6130-01-254-0674
NSN 6135-00-134-6648
NSN 5920-01-607-8055
NSN 5965-01-507-7464
NSN 6110-00-450-9883
NSN 6135-01-513-3581
NSN 5965-00-043-3463
NSN 6645-01-495-0939
NSN 5910-01-603-2070
NSN 6110-01-129-6008
NSN 6685-01-100-3012
NSN 6105-01-506-0881