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 5950-00-392-1719
NSN 6650-01-382-8569
NSN 6620-00-253-6329
NSN 6610-01-598-3036
NSN 7035-01-298-5154
NSN 5855-01-040-9233
NSN 5965-00-289-6280
NSN 6620-01-311-3516
NSN 5975-01-040-0373
NSN 5999-00-221-4615
NSN 5915-01-111-4253
NSN 5999-01-499-9238