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 2925-00-486-8640
NSN 5930-00-909-8586
NSN 5910-01-429-0748
NSN 5855-01-491-9064
NSN 5960-01-485-2467
NSN 6240-01-036-7798
NSN 6685-01-450-5493
NSN 6130-00-702-0402
NSN 6240-00-514-3507
NSN 5985-00-644-9752
NSN 5996-01-296-4466
NSN 6610-01-168-7943