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 5975-01-261-4965
NSN 6645-01-493-8632
NSN 5990-01-462-1617
NSN 5920-01-279-4359
NSN 6150-00-278-1294
NSN 7035-01-331-5614
NSN 6685-00-935-6961
NSN 6110-00-269-2696
NSN 5905-00-597-8280
NSN 5930-01-329-2760
NSN 5855-00-361-0167
NSN 5998-00-075-8129