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 5975-01-197-7673
NSN 6105-01-513-3334
NSN 5925-01-100-0970
NSN 7035-01-648-6348
NSN 5945-00-964-8677
NSN 6645-01-488-5466
NSN 6240-01-230-8070
NSN 6220-01-038-8292
NSN 7035-00-803-3056
NSN 5915-00-846-2885
NSN 5935-01-331-1921
NSN 6685-01-656-4693