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 5895-01-230-9590
NSN 6685-00-775-5818
NSN 5990-01-364-0813
NSN 6645-00-574-9712
NSN 6320-01-414-9801
NSN 6645-01-253-1950
NSN 7035-01-400-3666
NSN 6650-01-330-6740
NSN 5905-01-627-7011
NSN 5855-01-600-0486
NSN 5965-00-408-5501
NSN 5855-01-590-6240