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 7035-01-263-5463
NSN 5965-01-313-2470
NSN 6650-00-515-6002
NSN 5935-00-893-3935
NSN 5895-01-441-9630
NSN 6150-01-173-3957
NSN 6685-01-384-4138
NSN 6320-01-466-4175
NSN 5935-01-313-3919
NSN 5985-01-500-3753
NSN 5945-01-005-0328
NSN 6645-00-145-6411