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 6145-00-231-9762
NSN 6610-01-566-8198
NSN 5985-01-184-3203
NSN 6110-00-577-8156
NSN 6320-01-338-6006
NSN 6150-01-429-0213
NSN 6650-01-375-0507
NSN 5950-01-086-5685
NSN 5975-00-229-6627
NSN 6220-00-988-1562
NSN 5895-00-949-5906
NSN 6685-01-344-0914