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 6110-01-136-5026
NSN 5998-00-633-5169
NSN 5996-01-116-3404
NSN 5915-01-284-2613
NSN 5999-00-226-7859
NSN 5855-01-547-6540
NSN 7035-00-215-3272
NSN 6650-00-925-1274
NSN 6110-01-599-1917
NSN 6685-01-138-5344
NSN 2925-01-562-8051
NSN 6650-01-214-1710