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 5950-00-602-1055
NSN 6685-01-333-1744
NSN 4140-00-421-4555
NSN 5985-00-221-9718
NSN 5895-01-227-2542
NSN 5855-01-316-6574
NSN 5990-00-518-0684
NSN 5960-01-231-9119
NSN 5920-01-576-8240
NSN 5915-00-481-9479
NSN 6220-00-195-4655
NSN 5905-01-444-2037