Cracking pressure is rated at 4 inches h20 (water)
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 6220-01-140-3796
NSN 5950-01-084-1380
NSN 5996-01-408-5632
NSN 5999-01-650-0038
NSN 5930-01-412-1416
NSN 5975-01-484-6118
NSN 5975-01-463-1725
NSN 6610-00-832-9983
NSN 2925-01-014-0118
NSN 5930-01-054-3229
NSN 5920-00-466-3950
NSN 5935-01-017-8691