A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.
Classification: Check valves of materials other than copper, iron or steel
NSN 5930-01-384-2820
NSN 5960-01-387-7915
NSN 5975-01-178-9528
NSN 5965-01-116-1886
NSN 6240-01-438-8044
NSN 6610-00-033-8719
NSN 4140-00-445-3944
NSN 7035-01-549-6765
NSN 5905-00-481-5416
NSN 6135-01-453-5069
NSN 5999-01-576-0325
NSN 6105-01-406-4844