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 5985-01-490-5447
NSN 5935-01-424-0692
NSN 5895-01-642-4275
NSN 7035-01-533-5770
NSN 5925-01-567-7521
NSN 6145-01-340-5142
NSN 5910-01-348-2115
NSN 5910-00-404-5709
NSN 5975-00-035-6524
NSN 6620-01-445-2931
NSN 6645-00-479-9334
NSN 6135-01-364-0667