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 6110-01-442-1522
NSN 6150-01-380-6253
NSN 6110-00-068-0786
NSN 5920-01-053-0987
NSN 6610-01-466-9985
NSN 6240-00-832-6867
NSN 6105-00-993-1785
NSN 6650-01-463-8405
NSN 6685-00-862-5431
NSN 5998-01-230-5416
NSN 5915-01-232-7348
NSN 2925-01-656-8217