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 5996-01-199-8555
NSN 6610-01-521-9801
NSN 6685-00-471-4125
NSN 6240-01-515-5760
NSN 5855-00-003-6408
NSN 5996-01-592-2414
NSN 5975-01-373-9052
NSN 6110-00-453-5839
NSN 6645-00-089-8842
NSN 5975-01-492-0589
NSN 5996-00-962-1399
NSN 5990-01-227-6526