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 5935-00-237-9239
NSN 5960-01-030-6407
NSN 7035-01-119-6271
NSN 5945-01-657-6203
NSN 6610-01-434-4958
NSN 5998-00-883-8301
NSN 6620-01-227-0433
NSN 5975-01-306-9382
NSN 6110-00-756-3784
NSN 5950-01-377-9897
NSN 6685-00-690-4416
NSN 6645-01-052-8331