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 5905-01-370-9689
NSN 5975-01-062-4314
NSN 2925-00-038-0596
NSN 5975-00-035-6524
NSN 6320-00-036-3688
NSN 2925-00-163-9016
NSN 5965-00-754-9059
NSN 5935-01-423-5265
NSN 5895-00-863-0745
NSN 6645-01-060-5916
NSN 5925-01-651-8512
NSN 5935-01-501-8124