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 5855-01-151-5541
NSN 5996-00-150-8842
NSN 5910-00-052-8426
NSN 2925-01-625-6841
NSN 5985-01-359-0482
NSN 5985-00-218-1356
NSN 5925-01-487-6830
NSN 5945-00-414-0159
NSN 5930-01-503-9422
NSN 5975-00-023-1937
NSN 5965-01-513-9978
NSN 6650-01-063-7714