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 5855-01-482-0440
NSN 6320-00-284-1524
NSN 5960-01-275-7552
NSN 5835-00-695-9543
NSN 6610-01-378-8422
NSN 5996-00-849-7532
NSN 5925-01-340-7420
NSN 6130-01-063-7446
NSN 5835-00-880-6477
NSN 6620-01-128-4462
NSN 4140-00-476-7211
NSN 5960-01-425-1454