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 6610-00-108-9546
NSN 6105-00-442-5697
NSN 2925-01-013-0413
NSN 6145-00-406-4471
NSN 6645-01-575-9995
NSN 6220-00-956-0565
NSN 6220-00-851-2307
NSN 2925-01-155-5444
NSN 7035-00-931-9415
NSN 2925-00-633-7223
NSN 6145-00-470-1606
NSN 6145-00-530-8427