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 6645-01-503-8211
NSN 6620-01-020-4526
NSN 6620-01-337-0652
NSN 5930-00-203-4430
NSN 5985-00-939-7036
NSN 5930-00-262-6057
NSN 6610-01-389-3082
NSN 5945-01-500-6645
NSN 6610-01-445-9580
NSN 2925-00-422-5159
NSN 5950-00-153-4556
NSN 5920-01-419-7737