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 6110-01-467-6610
NSN 6685-00-752-8690
NSN 6240-00-560-5426
NSN 6685-00-786-4050
NSN 5920-01-456-1560
NSN 6620-01-288-2627
NSN 5835-01-430-4765
NSN 6150-01-389-2338
NSN 6685-00-229-7350
NSN 5935-01-431-4542
NSN 6645-01-281-7254
NSN 5835-01-373-9506