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 5920-01-173-9925
NSN 6645-01-027-3838
NSN 6105-01-055-8187
NSN 6130-01-581-7772
NSN 5965-01-522-4632
NSN 6320-00-857-4073
NSN 5960-00-683-7476
NSN 6110-00-943-3544
NSN 5965-00-529-0602
NSN 6320-00-593-0379
NSN 6220-01-332-7793
NSN 6645-00-411-3733