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 5855-00-494-9581
NSN 5985-01-502-9169
NSN 6320-00-116-3658
NSN 5905-01-237-0060
NSN 6145-00-822-5203
NSN 6320-01-271-0247
NSN 6145-01-156-9587
NSN 5895-01-366-9631
NSN 6135-01-432-6201
NSN 6145-01-158-4833
NSN 7035-00-585-2113
NSN 6610-01-580-0766