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 5960-00-400-2222
NSN 4140-01-426-5200
NSN 5998-01-527-1427
NSN 6105-01-464-9563
NSN 6685-00-480-9200
NSN 6145-01-431-8803
NSN 5965-01-592-5391
NSN 6620-00-730-8699
NSN 5990-00-827-0684
NSN 5960-01-520-4615
NSN 5915-01-615-1675
NSN 6220-00-802-3369