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 5975-01-419-4349
NSN 6145-01-440-4868
NSN 6150-01-025-6305
NSN 6685-01-545-3495
NSN 6610-01-426-1011
NSN 5855-01-364-1005
NSN 5835-01-432-1277
NSN 6650-01-472-8804
NSN 6645-01-391-1983
NSN 5835-00-233-6327
NSN 6110-00-419-4475
NSN 5965-01-598-8882