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 6620-01-149-9192
NSN 6150-01-195-1880
NSN 5935-01-306-5288
NSN 6135-01-417-6539
NSN 6240-00-296-0488
NSN 5945-01-515-0652
NSN 5925-00-446-2464
NSN 5975-01-482-8382
NSN 6110-01-364-8880
NSN 5915-01-231-0198
NSN 5965-01-480-9229
NSN 5905-01-633-4424