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 5990-00-801-7923
NSN 6135-01-265-1384
NSN 5910-00-427-5664
NSN 5985-00-932-5333
NSN 5985-01-340-9784
NSN 5835-01-103-1384
NSN 5965-00-715-6159
NSN 5996-01-014-6103
NSN 5930-00-842-5559
NSN 6620-01-045-4467
NSN 6645-01-514-6603
NSN 5945-01-337-6801