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 4140-01-486-1436
NSN 6110-01-443-3395
NSN 6320-01-578-6006
NSN 6645-01-633-1852
NSN 6320-01-558-8844
NSN 5905-01-421-3745
NSN 5985-00-128-6215
NSN 5998-01-476-2487
NSN 6105-00-609-9126
NSN 5905-00-013-0875
NSN 6130-01-172-9489
NSN 5950-00-350-8373