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 5960-00-822-2571
NSN 5925-01-186-4604
NSN 5855-01-178-8732
NSN 6110-01-424-1208
NSN 5910-01-647-1555
NSN 7035-00-488-9765
NSN 5950-00-010-1396
NSN 5998-01-301-1943
NSN 6620-01-401-5356
NSN 6110-01-206-5162
NSN 6610-01-206-0703
NSN 6685-01-441-1391