39-0540-20 – BACK-UP RING, 19-201, 3/16 X 1/32 X 7/16 TEFLONModel No. 39-0540-20List Price $29.00Weight 0.01 lbs.Description BACK-UP RING, 19-201, 3/16 X 1/32 X 7/16 TEFLONQty Add to Cart