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 5950-01-634-0677
NSN 5950-01-578-7857
NSN 5998-01-305-8955
NSN 5975-00-117-1084
NSN 5996-01-408-4185
NSN 5999-01-625-0587
NSN 6110-00-193-0450
NSN 4140-00-531-6696
NSN 5920-01-306-5260
NSN 6110-00-279-8710
NSN 6150-01-625-1533
NSN 5960-00-986-5060