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 6685-01-271-6611
NSN 5920-00-466-3950
NSN 6135-00-798-1425
NSN 5935-01-102-7021
NSN 2925-00-432-3410
NSN 6610-01-406-4985
NSN 6105-01-379-9603
NSN 6610-00-305-2627
NSN 5985-00-840-7104
NSN 2925-01-462-1620
NSN 5920-00-862-5820
NSN 6685-01-169-9065