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 5905-01-506-1657
NSN 6135-00-050-7189
NSN 6105-00-035-8809
NSN 5945-00-030-2003
NSN 5855-00-053-3142
NSN 6145-00-141-8095
NSN 5965-00-567-7679
NSN 6150-01-113-7299
NSN 6685-01-216-3056
NSN 5920-01-152-1021
NSN 5990-00-147-3144
NSN 6145-01-383-4270