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 5895-01-233-5898
NSN 6645-01-466-9477
NSN 6130-01-600-0763
NSN 5895-01-085-5992
NSN 6685-00-702-3074
NSN 6650-00-035-9297
NSN 5960-01-128-0850
NSN 5935-01-644-2700
NSN 5855-01-284-6318
NSN 5999-01-572-3971
NSN 5996-00-491-9304
NSN 5915-01-416-1528