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 5920-01-614-1391
NSN 5975-00-099-9312
NSN 5945-01-352-5852
NSN 6240-00-284-1457
NSN 5985-01-659-9595
NSN 6320-01-501-7935
NSN 5998-01-183-9662
NSN 5996-00-343-4411
NSN 6610-00-941-0509
NSN 5930-00-287-5071
NSN 6110-01-448-9273
NSN 6685-01-381-7207