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 5990-00-446-0518
NSN 5925-00-140-0009
NSN 5835-01-613-9485
NSN 5905-01-540-7442
NSN 6130-00-869-4516
NSN 5910-00-570-5686
NSN 6685-00-431-7755
NSN 6130-00-483-9766
NSN 5925-01-108-9159
NSN 5915-01-153-0121
NSN 6645-01-625-9292
NSN 5910-01-098-6174