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 6645-00-223-8018
NSN 6645-01-520-6563
NSN 5920-00-864-2984
NSN 5910-00-733-0326
NSN 7035-01-057-2402
NSN 5855-00-138-2386
NSN 5999-00-553-6335
NSN 5996-00-237-5146
NSN 5975-01-132-3603
NSN 5975-01-422-3800
NSN 4140-01-418-1894
NSN 5965-01-459-4345