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 5905-00-528-9046
NSN 5950-01-530-8052
NSN 5990-00-258-0228
NSN 6685-01-051-3794
NSN 6620-01-177-5567
NSN 6145-00-387-5459
NSN 6110-01-086-8076
NSN 5835-01-177-1092
NSN 5998-00-177-2993
NSN 5975-00-040-2363
NSN 6645-00-664-4665
NSN 5996-01-055-1039