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 5895-01-029-5023
NSN 5960-01-089-8155
NSN 6145-01-359-8028
NSN 6150-01-337-3708
NSN 5910-00-198-9779
NSN 5895-01-514-9315
NSN 6610-00-866-6096
NSN 5925-00-803-4539
NSN 5998-01-180-1721
NSN 2925-01-171-2511
NSN 4140-01-252-8432
NSN 5895-01-158-5314