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 6150-00-081-6742
NSN 5996-01-225-8507
NSN 5895-00-855-7610
NSN 6105-01-537-1195
NSN 6240-01-461-3733
NSN 6685-00-528-5175
NSN 5895-01-316-8718
NSN 5915-00-418-3849
NSN 6610-00-292-9895
NSN 5985-00-312-1335
NSN 6220-00-764-6099
NSN 7035-01-412-8322