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 6220-01-346-6643
NSN 4140-01-010-8183
NSN 5895-01-425-1922
NSN 6320-01-358-0141
NSN 6620-00-388-9202
NSN 5999-01-468-5665
NSN 4140-01-117-1960
NSN 6240-00-182-7717
NSN 5895-00-460-9589
NSN 6240-01-386-1354
NSN 6650-01-247-6623
NSN 6105-01-455-6201