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 5855-00-962-5792
NSN 5835-01-079-3658
NSN 5935-01-391-6818
NSN 5920-01-152-1949
NSN 6220-01-088-2239
NSN 6135-01-390-7364
NSN 6610-00-225-9886
NSN 5990-01-370-7912
NSN 5996-00-900-8177
NSN 5950-01-456-0210
NSN 5965-01-147-5847
NSN 5905-00-286-5270