0.188 in. Orifice
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 5998-01-273-0601
NSN 5935-00-929-2096
NSN 6220-01-634-0660
NSN 5905-00-100-2508
NSN 5965-00-422-5415
NSN 5905-01-082-9036
NSN 6220-01-106-9867
NSN 6105-00-149-1602
NSN 7035-01-528-7870
NSN 5930-00-405-0757
NSN 4140-01-656-8267
NSN 6105-01-037-7294