End connection has a 2 step size of 1/4in first step and 1/2in second step.
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.
Classification: Check valves of materials other than copper, iron or steel
NSN 5990-00-223-3258
NSN 5975-00-965-9217
NSN 6610-00-883-5160
NSN 5930-01-209-6830
NSN 5925-01-220-6147
NSN 5985-01-076-4710
NSN 6620-01-091-1038
NSN 4140-01-068-3500
NSN 5996-01-188-7934
NSN 5835-00-543-0081
NSN 7035-01-168-3596
NSN 5930-01-368-2913