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 5915-00-994-9689
NSN 6105-01-508-5937
NSN 2925-01-300-6602
NSN 5996-01-329-0918
NSN 5835-00-450-3531
NSN 5920-00-373-3636
NSN 5960-00-575-5116
NSN 5920-01-355-1432
NSN 6105-00-833-3659
NSN 6650-01-376-6965
NSN 6645-00-432-3420
NSN 5965-01-005-0341