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 6150-01-427-3764
NSN 6685-00-295-0824
NSN 7035-01-478-4734
NSN 6220-00-025-7743
NSN 5996-00-138-9938
NSN 2925-00-602-0869
NSN 2925-01-484-8556
NSN 6240-01-507-9304
NSN 6240-01-014-5598
NSN 5910-01-032-1005
NSN 5998-00-013-1923
NSN 6685-00-126-5711