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 5996-01-250-2814
NSN 5895-00-288-5878
NSN 7035-01-474-9537
NSN 5935-00-009-5697
NSN 6145-00-095-2492
NSN 6220-00-383-9402
NSN 5950-01-362-6680
NSN 4140-01-220-4377
NSN 5925-01-401-5314
NSN 5999-01-433-2811
NSN 6240-01-034-7520
NSN 5930-01-612-6777