Circle seal control model c2949b applies; cartridge type
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 copper having a pressure rating of 850 kpa or over
NSN 5905-01-331-6366
NSN 6650-01-248-2591
NSN 5999-01-327-3067
NSN 6620-01-208-1092
NSN 5999-01-633-9390
NSN 6145-00-911-7271
NSN 6145-01-420-9289
NSN 6685-00-806-9345
NSN 5999-01-112-5336
NSN 5945-00-518-5676
NSN 2925-01-550-0177
NSN 5935-00-269-5516