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 5930-01-194-4477
NSN 6145-01-566-2732
NSN 6620-01-057-2580
NSN 6240-01-300-8528
NSN 6320-01-371-3047
NSN 5835-01-028-4007
NSN 6645-01-361-8947
NSN 5945-01-266-9519
NSN 6320-01-089-9086
NSN 5835-01-310-8979
NSN 5998-00-789-3277
NSN 5855-01-422-8697