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 6145-01-633-6571
NSN 5895-01-144-2629
NSN 6105-00-809-4356
NSN 5990-00-070-9608
NSN 5996-01-080-2945
NSN 6105-01-574-8504
NSN 6610-01-431-8575
NSN 6685-01-483-2170
NSN 6320-01-481-7322
NSN 6150-01-422-7675
NSN 6240-00-244-0483
NSN 2925-01-368-5773