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 6620-01-246-4314
NSN 6685-01-556-3449
NSN 6130-01-213-2266
NSN 6150-01-521-2775
NSN 5925-00-363-9578
NSN 5965-01-307-7503
NSN 6220-00-858-4831
NSN 5985-01-568-8030
NSN 5950-01-350-4462
NSN 5950-00-845-5706
NSN 5965-01-420-2629
NSN 5915-00-983-7366