We just got a new gas range. The old gas range had copper tube with 3/8 flare fittings. The line was kinked so I got a new BrassCraft gas connector kit 60" long 1/2" line. The Range has a hook up fitting from the regulator with a .685 ID. The range claimed it has a 1/2 npt fitting. I saw a chart the said 1/2 npt 14 tpi was .840 and 3/8 14 tpi was .675 . The 3/8 I bought was .635 so It wasn't even close to fitting. The only fitting that came close was 1/2 flared male but the regulator hook up is not a flared connection. I am at a loss as to what fitting the range needs to be able to go to the 1/2 flare fitting for the hose.