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 6685-00-596-8765
NSN 5855-01-180-5369
NSN 5999-00-843-6251
NSN 6150-01-525-7556
NSN 7035-00-585-2113
NSN 5935-00-058-8612
NSN 5985-01-245-2066
NSN 6220-01-076-1836
NSN 6240-01-058-5061
NSN 5990-01-470-2565
NSN 5975-00-842-5274
NSN 5998-01-011-1360