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 5920-00-558-6792
NSN 5965-00-554-4138
NSN 5960-01-085-7191
NSN 6685-00-877-0904
NSN 5915-00-819-3653
NSN 5925-01-202-4332
NSN 5855-01-264-8599
NSN 5950-00-394-1546
NSN 6650-00-539-4932
NSN 5930-01-267-8947
NSN 5945-01-392-0898
NSN 5985-00-901-1774