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 5985-01-167-7942
NSN 5998-01-292-6901
NSN 5855-00-472-2055
NSN 5965-00-827-9680
NSN 6130-00-217-7695
NSN 5990-00-548-6163
NSN 5905-01-334-4636
NSN 6650-00-585-2786
NSN 5998-01-024-4724
NSN 5999-00-118-3702
NSN 6130-00-684-6773
NSN 5998-01-025-1688