8.705-376.0 Hex Nipple 1/2 Mpt X 3/8 Mpt/6000Psi ships factory direct right to your door. ADDITIONAL PRODUCT NOTES: Hex Reducing Nipple, Steel, 1/2'' x 3/8'' MPT 8.705-376.0 psi psi - 6, 000, 142429, 2-0019, 600814, 7100604, 87053760,