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 6220-00-570-7255
NSN 5985-01-208-1818
NSN 5960-01-525-1690
NSN 5835-00-466-3075
NSN 5965-01-488-6695
NSN 5915-01-415-6307
NSN 5855-01-246-0342
NSN 6145-01-532-7086
NSN 6610-00-273-9019
NSN 5925-01-082-0591
NSN 6645-01-295-4373
NSN 6645-01-282-1928