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 5950-01-426-8810
NSN 5915-01-052-4844
NSN 5855-01-397-8862
NSN 5990-00-573-6067
NSN 5835-01-162-8353
NSN 5996-01-312-3508
NSN 5999-01-131-2291
NSN 6110-01-122-3025
NSN 6685-01-599-5186
NSN 6150-01-432-9395
NSN 6610-01-535-0310
NSN 6320-01-166-3602