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 5855-01-472-4519
NSN 6645-01-096-9719
NSN 5998-00-959-6885
NSN 5998-00-892-2200
NSN 6685-01-566-8801
NSN 6650-01-501-5661
NSN 6320-00-228-5678
NSN 6610-01-287-9814
NSN 5985-01-634-0635
NSN 6220-00-432-3069
NSN 6610-01-648-6527
NSN 5975-00-897-2091