Underwater life support iaw navsea instruction 10560.2b
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 5905-01-022-0613
NSN 7035-01-103-3342
NSN 6135-01-620-1306
NSN 6650-01-217-0303
NSN 6105-01-336-6568
NSN 6320-01-092-4101
NSN 6105-00-595-5378
NSN 6320-01-607-1491
NSN 5945-01-619-4995
NSN 6150-00-815-5984
NSN 5920-01-634-0250
NSN 5910-01-462-1205