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 materials other than copper, iron or steel
NSN 6240-00-765-9458
NSN 6220-00-802-6776
NSN 6145-01-296-5580
NSN 5996-01-547-6638
NSN 6645-01-592-7862
NSN 6130-00-557-7455
NSN 5996-01-481-5152
NSN 5915-01-443-3881
NSN 5975-01-508-3989
NSN 5915-00-648-0073
NSN 2925-00-997-1792
NSN 6685-01-628-6086