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 4140-01-370-4868
NSN 5855-01-223-0833
NSN 5950-01-397-1114
NSN 2925-01-391-9247
NSN 6105-00-527-8571
NSN 4140-00-285-6042
NSN 5990-00-140-1159
NSN 5996-01-413-5037
NSN 5935-00-281-1237
NSN 6650-01-490-0281
NSN 6685-00-204-6037
NSN 6320-01-039-5891