Clean for oxygenservice per aro of buffalo inc ps203
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 6135-01-648-0057
NSN 5999-00-141-9441
NSN 6110-01-139-3528
NSN 5915-00-816-9056
NSN 2925-00-513-6644
NSN 2925-00-774-8247
NSN 5935-01-490-2063
NSN 6620-01-468-9288
NSN 4140-00-872-6316
NSN 4140-01-086-0067
NSN 6685-00-067-5968
NSN 6130-00-011-0714