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 5960-00-671-4034
NSN 6135-01-511-1975
NSN 5835-01-014-4574
NSN 4140-00-090-9452
NSN 6110-01-489-1671
NSN 6130-00-938-5644
NSN 6220-01-181-9945
NSN 6650-00-950-4107
NSN 5975-00-539-7300
NSN 5895-00-045-9695
NSN 5930-01-303-0979
NSN 6135-01-378-3331