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 2925-00-480-9068
NSN 5930-00-278-7731
NSN 6620-00-035-5813
NSN 6105-01-594-1249
NSN 4140-01-579-8352
NSN 5975-01-217-3421
NSN 5998-00-198-7310
NSN 6685-01-327-3286
NSN 6320-01-412-2973
NSN 5930-00-477-0087
NSN 6650-01-231-9545
NSN 5999-01-130-1641