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 6645-01-473-3752
NSN 6130-01-528-1663
NSN 5998-00-925-2992
NSN 5930-01-506-8203
NSN 5996-01-350-6477
NSN 5935-01-575-1390
NSN 5965-00-086-8513
NSN 5960-01-425-1454
NSN 6105-01-192-0532
NSN 6320-01-267-0586
NSN 5935-00-493-6521
NSN 6620-01-048-4145