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 6610-00-109-2593
NSN 5835-01-391-4556
NSN 5998-00-333-4017
NSN 5855-00-156-5489
NSN 6645-01-592-2557
NSN 5910-01-170-3330
NSN 5945-01-102-3161
NSN 5999-01-407-1087
NSN 5965-01-388-3492
NSN 5990-01-493-4039
NSN 5905-01-515-8222
NSN 5895-01-193-4290