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 6150-00-053-0795
NSN 5950-01-406-8582
NSN 6685-00-104-7149
NSN 5945-00-276-9274
NSN 5935-01-330-5921
NSN 5965-01-177-3931
NSN 6650-01-294-1067
NSN 5905-00-960-6807
NSN 6220-01-647-6028
NSN 6240-00-170-5302
NSN 6150-00-753-3950
NSN 6620-01-555-5218