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 6685-01-128-5972
NSN 6145-00-537-7059
NSN 6610-01-540-8521
NSN 5835-00-113-6090
NSN 5935-00-137-4530
NSN 6145-00-286-9588
NSN 2925-01-127-0167
NSN 5855-01-468-4996
NSN 6135-00-295-2614
NSN 5930-01-354-4095
NSN 5950-01-270-3565
NSN 6110-00-082-0268