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 6130-00-163-6201
NSN 5996-01-099-1188
NSN 5855-01-312-5160
NSN 6685-01-328-1511
NSN 5855-00-337-3679
NSN 5975-01-411-6597
NSN 5950-01-226-3270
NSN 5998-01-193-8870
NSN 6620-00-527-6523
NSN 5905-01-579-3060
NSN 6620-00-912-9623
NSN 6220-00-512-9472