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 5855-01-217-6857
NSN 5975-01-224-7209
NSN 6130-01-175-6010
NSN 6130-00-841-8917
NSN 6145-00-015-1602
NSN 4140-00-824-8821
NSN 5975-00-812-5048
NSN 5960-01-250-5502
NSN 5910-01-500-1388
NSN 5925-01-542-9068
NSN 4140-01-570-9765
NSN 5905-01-056-4659