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 5950-00-576-5143
NSN 5985-01-165-0411
NSN 5835-01-316-3255
NSN 5998-01-151-4489
NSN 5965-01-208-3488
NSN 5920-00-117-8280
NSN 6110-01-088-7198
NSN 6320-00-004-9158
NSN 4140-01-353-7761
NSN 5835-01-014-4574
NSN 6610-01-003-5379
NSN 5960-00-457-5560