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 6685-00-478-1858
NSN 5835-01-461-8184
NSN 5950-01-121-4795
NSN 6240-01-115-4549
NSN 6620-01-600-0479
NSN 5996-01-450-9131
NSN 5960-01-641-5493
NSN 5910-01-596-4412
NSN 5960-01-089-8155
NSN 5999-01-401-5322
NSN 5975-00-258-7396
NSN 6685-01-460-3706