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 6610-00-536-4977
NSN 5975-00-079-0022
NSN 5930-01-283-1406
NSN 6650-00-351-9362
NSN 6320-00-228-5678
NSN 5855-00-110-9341
NSN 5920-01-642-8764
NSN 5910-01-376-1000
NSN 5915-00-275-7814
NSN 2925-01-577-9269
NSN 5985-01-176-4893
NSN 5920-01-573-7609