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 5975-01-451-0277
NSN 5920-01-025-9381
NSN 6130-00-520-5884
NSN 2925-01-153-7794
NSN 6610-01-325-6767
NSN 6220-01-226-8572
NSN 5950-01-541-2642
NSN 5930-00-518-7278
NSN 5910-01-555-0086
NSN 6110-00-308-3993
NSN 5985-01-099-8889
NSN 6105-01-322-8944