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 5855-01-594-0955
NSN 5975-01-056-5514
NSN 5950-01-411-5615
NSN 6150-01-596-6735
NSN 5835-00-823-6116
NSN 6240-01-425-1659
NSN 5905-00-642-8130
NSN 5920-00-169-4428
NSN 6610-01-482-4144
NSN 6685-00-508-6623
NSN 5998-01-459-7000
NSN 6110-01-581-4468