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 6130-00-879-5197
NSN 5996-01-208-5045
NSN 5950-01-047-8435
NSN 5998-00-633-5169
NSN 5895-00-073-5071
NSN 5925-01-251-3296
NSN 6220-01-085-9808
NSN 5945-01-087-1454
NSN 2925-01-563-8876
NSN 6620-01-364-7461
NSN 5960-01-475-7428
NSN 5975-01-401-5355