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 5905-01-445-7729
NSN 4140-01-551-2798
NSN 6220-01-525-5956
NSN 5910-01-056-5533
NSN 6145-01-419-8405
NSN 6130-00-145-6101
NSN 6620-01-121-4019
NSN 2925-01-068-3262
NSN 5835-01-424-0054
NSN 5920-01-270-0615
NSN 6320-01-426-8947
NSN 6130-01-422-8736