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 6220-01-158-0918
NSN 5985-00-411-5201
NSN 5915-01-208-7281
NSN 6610-01-452-2477
NSN 5835-01-370-4292
NSN 5965-01-633-8849
NSN 5915-01-113-7872
NSN 5920-00-060-3290
NSN 6650-00-618-9398
NSN 6645-01-605-1485
NSN 5960-00-553-7338
NSN 6135-00-152-8729