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 5835-00-494-8419
NSN 6645-01-327-7362
NSN 5960-00-665-5180
NSN 6320-01-180-9908
NSN 5855-01-312-5160
NSN 5930-01-077-1992
NSN 5996-00-603-5253
NSN 4140-01-562-3999
NSN 5985-00-081-1885
NSN 6145-00-494-2847
NSN 6135-01-222-0703
NSN 6135-01-654-5642