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 2925-01-114-8484
NSN 6650-00-116-7439
NSN 5998-00-103-3736
NSN 5965-00-139-4870
NSN 4140-00-394-8731
NSN 6645-01-315-9238
NSN 5935-00-878-4708
NSN 5950-01-579-1038
NSN 6145-01-606-9210
NSN 5960-01-066-4771
NSN 2925-00-026-0005
NSN 4140-01-157-3700