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 5905-01-558-5059
NSN 5990-00-027-7508
NSN 5895-01-508-3630
NSN 5920-00-858-8619
NSN 6685-01-580-4974
NSN 5925-01-644-3020
NSN 5998-01-210-8371
NSN 6220-01-222-7244
NSN 5950-01-449-1355
NSN 5910-01-116-7881
NSN 5990-00-181-2220
NSN 5945-00-457-8964