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 steel
NSN 5930-01-027-0980
NSN 5990-00-518-0684
NSN 5998-00-707-3369
NSN 6620-01-476-0498
NSN 5835-01-464-7038
NSN 5996-00-937-5051
NSN 5996-01-250-8809
NSN 5945-01-342-4501
NSN 7035-01-018-9629
NSN 6145-01-641-1034
NSN 5965-01-546-8660
NSN 6650-00-518-2962