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 6130-00-880-6000
NSN 5920-00-401-6790
NSN 6685-00-226-1885
NSN 5998-00-456-0864
NSN 5920-00-399-7760
NSN 5996-01-202-9338
NSN 5996-01-570-4583
NSN 6105-00-635-2710
NSN 6150-00-246-6673
NSN 5855-01-199-2046
NSN 5999-01-136-8144
NSN 5895-01-501-5901