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 6130-01-437-7729
NSN 5965-01-390-1261
NSN 5915-00-195-4236
NSN 5945-01-350-4132
NSN 5975-01-401-5355
NSN 5925-01-043-5815
NSN 6220-01-611-7723
NSN 6130-01-043-2206
NSN 5925-00-209-0435
NSN 6150-01-076-8567
NSN 5930-01-366-1335
NSN 5920-00-711-0767