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 6105-01-522-1880
NSN 6645-01-422-9672
NSN 5910-01-578-6247
NSN 5910-00-361-8602
NSN 5999-01-440-3473
NSN 6135-00-900-2139
NSN 5990-00-242-3754
NSN 5950-00-127-1361
NSN 5999-01-647-3677
NSN 6220-01-382-7326
NSN 6130-00-310-2644
NSN 5915-00-833-7714