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 5985-01-544-7488
NSN 5910-01-049-1746
NSN 6130-01-331-5690
NSN 6145-01-534-2001
NSN 5910-01-512-1978
NSN 5998-01-179-9686
NSN 5990-01-171-3547
NSN 6105-01-258-5884
NSN 5975-01-206-4614
NSN 6130-01-648-3649
NSN 6240-00-145-1359
NSN 5965-01-148-4979