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 5985-01-357-1273
NSN 5910-01-459-3527
NSN 5895-01-338-3838
NSN 5985-01-174-3012
NSN 5985-01-119-4923
NSN 6645-01-287-9969
NSN 6650-01-143-4586
NSN 2925-01-255-6394
NSN 4140-00-733-7936
NSN 6110-01-491-4650
NSN 6145-01-513-2715
NSN 6105-01-189-3576