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 5930-01-634-0659
NSN 5855-01-010-4921
NSN 6650-00-195-7519
NSN 6685-00-006-2714
NSN 6135-01-447-5083
NSN 5999-00-606-6117
NSN 6320-00-194-4252
NSN 5975-01-608-5907
NSN 5910-01-414-8388
NSN 5985-01-603-0870
NSN 5930-01-146-4810
NSN 6150-01-383-4976