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 6150-01-330-2784
NSN 5965-00-726-3168
NSN 6685-01-265-3754
NSN 5925-01-138-4954
NSN 6320-01-323-7565
NSN 5960-00-922-2943
NSN 5960-01-068-6841
NSN 6645-00-484-1992
NSN 5920-01-147-4633
NSN 5965-01-339-8139
NSN 6135-01-324-4692
NSN 5965-00-137-9291