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 5925-01-114-8254
NSN 5985-00-192-7098
NSN 6145-00-542-7980
NSN 5965-01-531-3496
NSN 5920-01-464-4373
NSN 5835-01-423-9203
NSN 6650-00-834-9062
NSN 5945-01-576-1689
NSN 6645-01-649-4770
NSN 6650-01-256-3413
NSN 5925-01-420-9433
NSN 6610-01-423-3608