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 6610-01-150-7018
NSN 5945-00-954-3761
NSN 5835-00-816-0394
NSN 6320-01-090-8296
NSN 5985-00-250-0541
NSN 5930-01-045-9469
NSN 5990-01-168-0820
NSN 4140-00-288-9826
NSN 6110-00-824-2162
NSN 6130-00-458-4585
NSN 5996-01-422-7288
NSN 5960-00-315-0358