Four bolt cap
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 5925-00-254-4924
NSN 6220-01-172-3620
NSN 5965-01-553-1938
NSN 7035-00-111-4389
NSN 6105-01-381-6950
NSN 5950-01-153-2650
NSN 6220-01-101-7317
NSN 5990-01-133-0351
NSN 6130-01-593-3749
NSN 6110-00-403-3580
NSN 6610-00-244-9142
NSN 5985-00-081-3456