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 5910-00-194-6394
NSN 6685-00-448-6208
NSN 6130-01-600-2410
NSN 5985-01-166-5892
NSN 6610-01-250-2811
NSN 4140-01-381-0099
NSN 5999-01-160-7905
NSN 5960-00-807-5272
NSN 6650-00-894-8634
NSN 5905-01-437-5030
NSN 5930-01-043-4399
NSN 6130-01-463-2249