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 6645-01-421-2445
NSN 5965-01-623-8583
NSN 5930-01-479-8509
NSN 5945-01-366-1508
NSN 5998-00-111-3300
NSN 5945-01-432-1139
NSN 5855-01-306-0415
NSN 6650-01-590-1330
NSN 6620-00-551-9948
NSN 5975-01-473-3423
NSN 5998-01-597-2280
NSN 6130-01-085-5931