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 5920-01-124-9883
NSN 6105-00-187-6070
NSN 5935-00-443-1493
NSN 6645-01-338-9152
NSN 6650-01-016-0406
NSN 5835-01-632-6627
NSN 6620-01-536-7799
NSN 7035-01-600-7737
NSN 5910-01-477-7829
NSN 6135-00-134-6648
NSN 6685-00-779-8211
NSN 6610-00-170-6715