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 5895-01-196-6312
NSN 6130-01-040-6349
NSN 5960-00-243-8397
NSN 5920-00-185-5801
NSN 6650-01-014-7671
NSN 5998-00-633-5169
NSN 6240-01-129-7060
NSN 5920-01-076-7045
NSN 6685-01-408-2637
NSN 6240-01-449-0746
NSN 5835-01-218-5560
NSN 5998-01-655-5065