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 5855-00-797-8217
NSN 5895-01-012-0930
NSN 6110-00-815-3052
NSN 6685-01-450-3285
NSN 5998-01-284-0041
NSN 5910-01-658-8622
NSN 5835-01-209-6410
NSN 6130-00-947-3710
NSN 5925-00-280-2273
NSN 5996-01-424-8650
NSN 6645-01-063-8243
NSN 6150-00-448-2357