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 6650-01-110-2142
NSN 5925-01-146-5528
NSN 5975-01-243-1108
NSN 6220-00-104-5365
NSN 5960-01-253-2333
NSN 5930-01-054-2903
NSN 6220-00-833-3904
NSN 5895-00-809-4005
NSN 5930-01-234-2200
NSN 5935-01-427-3822
NSN 5965-01-516-9960
NSN 6220-01-416-3852