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 5855-00-235-2676
NSN 5999-01-508-0926
NSN 5925-00-606-6529
NSN 5910-01-631-1673
NSN 6650-00-111-3399
NSN 6240-01-130-7854
NSN 6645-00-925-2887
NSN 5920-00-609-7570
NSN 6620-01-085-8688
NSN 6685-00-722-8574
NSN 6130-00-104-0701
NSN 5996-01-248-2305