Double check
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 6645-00-988-4427
NSN 5935-01-391-6100
NSN 5835-00-707-6266
NSN 5855-01-344-8688
NSN 5990-01-046-8530
NSN 5935-00-068-8524
NSN 5855-00-237-4088
NSN 7035-01-083-0282
NSN 5895-01-356-3990
NSN 6620-01-572-3510
NSN 6685-00-005-1288
NSN 5975-00-102-9639