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 6130-00-902-2570
NSN 6645-01-222-5468
NSN 5910-01-025-6987
NSN 5910-00-378-4725
NSN 4140-01-491-3477
NSN 5910-01-278-9009
NSN 7035-01-623-9555
NSN 4140-01-442-3063
NSN 5950-01-161-2044
NSN 6320-00-553-8427
NSN 5920-01-481-2546
NSN 6610-00-183-0371