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 steel
NSN 6145-00-490-9180
NSN 6645-00-472-4048
NSN 5930-00-973-4309
NSN 5835-00-106-2120
NSN 6650-00-849-5581
NSN 6620-00-629-5850
NSN 5920-00-779-9560
NSN 5835-01-381-9565
NSN 5999-00-679-5908
NSN 6320-01-006-6138
NSN 5965-01-633-8849
NSN 5950-01-541-9885