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 6240-01-378-8227
NSN 5985-01-468-8270
NSN 5975-01-322-1682
NSN 5975-01-546-6707
NSN 6145-00-635-9412
NSN 5965-01-603-9506
NSN 6105-01-513-9330
NSN 6135-00-027-3914
NSN 6650-01-230-5155
NSN 5935-01-028-9040
NSN 5895-00-699-5500
NSN 6320-00-343-1798