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 5960-01-449-1310
NSN 6105-00-978-7882
NSN 4140-00-498-4005
NSN 6135-01-633-8502
NSN 6610-00-440-3250
NSN 5975-01-231-9669
NSN 5930-01-015-1300
NSN 5915-01-561-8253
NSN 6320-01-527-0211
NSN 6135-01-041-3829
NSN 5996-01-349-6046
NSN 5999-00-833-8143