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 5835-01-303-6563
NSN 6145-01-106-5375
NSN 5999-01-013-5823
NSN 5990-01-201-4852
NSN 5905-00-950-4598
NSN 4140-00-385-2925
NSN 6220-01-615-0905
NSN 6220-01-211-4630
NSN 6105-01-032-0889
NSN 5999-01-265-8592
NSN 5960-01-356-3490
NSN 4140-01-052-1378