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 6650-01-483-0938
NSN 6685-01-235-3996
NSN 6320-01-089-9086
NSN 5910-01-397-7657
NSN 5965-01-376-9305
NSN 6685-00-337-5529
NSN 6685-01-380-9740
NSN 5996-01-442-8751
NSN 5905-01-561-8840
NSN 6145-00-296-0085
NSN 5835-01-055-6859
NSN 4140-01-136-9802