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 6110-01-653-5038
NSN 6130-01-646-6791
NSN 2925-01-567-8027
NSN 5998-01-269-4438
NSN 5905-01-459-7163
NSN 6240-00-116-3629
NSN 6105-01-219-1157
NSN 7035-00-616-4410
NSN 5855-01-426-5589
NSN 2925-01-279-1558
NSN 6620-01-483-1138
NSN 6150-01-168-8248