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 5925-01-145-9198
NSN 5935-01-297-8771
NSN 5925-01-109-1268
NSN 5985-01-052-4500
NSN 6105-01-360-9624
NSN 2925-01-065-0060
NSN 5960-01-142-1995
NSN 4140-01-343-7302
NSN 7035-01-357-9246
NSN 6135-00-497-0491
NSN 5835-00-419-6576
NSN 5930-00-659-0667