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 5920-00-298-0700
NSN 4140-01-368-2609
NSN 5985-01-341-1756
NSN 5975-00-137-2836
NSN 2925-01-342-1712
NSN 7035-01-458-1963
NSN 6150-01-373-0238
NSN 5895-00-952-1703
NSN 6240-00-054-5149
NSN 6620-00-716-0001
NSN 6240-00-204-9355
NSN 6610-01-509-2048