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 5915-01-507-7403
NSN 6220-00-472-8119
NSN 5905-01-561-7726
NSN 5975-00-539-7300
NSN 6240-01-528-0812
NSN 5945-01-094-6343
NSN 5990-00-952-6742
NSN 5925-00-391-6987
NSN 5910-00-650-4949
NSN 6620-01-457-9476
NSN 5985-01-423-8341
NSN 5996-00-448-1245