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 5975-00-311-6130
NSN 4140-01-458-5569
NSN 6145-01-536-9899
NSN 4140-01-426-8428
NSN 6145-01-099-9620
NSN 5960-00-007-3679
NSN 6105-01-212-2142
NSN 5910-01-185-9360
NSN 6685-01-296-8170
NSN 6650-00-932-2048
NSN 2925-01-141-7563
NSN 6240-01-348-0057