SS5406 Stainless Steel Male NPTF x Female NPTF Reducer SAE J514 140139 Check Part Number A (1) NPTF A (2) NPTF L2 C2 Tap Drill Aeroquip # Parker # SS5406-04-02 1/4-18 1/8-27 0.85 0.63 0.33 259-2081-4-2 1/4 x 1/8 PTR-SS SS5406-06-02 3/8-18 1/8-27 0.85 0.75 0.33 259-2081-6-2 3/8 x 1/8 PTR-SS SS5406-06-04 3/8-18 1/4-18 0.85 0.75 0.42 259-2081-6-4 3/8 x 1/4 PTR-SS SS5406-08-02 1/2-14 1/8-27 1.10 0.88 0.33 259-2081-8-2 1/2 x 1/8 PTR-SS SS5406-08-04 1/2-14 1/4-18 1.10 0.88 0.42 259-2081-8-4 1/2 x 1/4 PTR-SS SS5406-08-06 1/2-14 3/8-18 1.10 0.88 0.56 259-2081-8-6 1/2 x 3/8 PTR-SS SS5406-12-02 3/4-14 1/8-27 1.17 1.13 0.33 259-2081-12-2 3/4 x 1/8 PTR-SS SS5406-12-04 3/4-14 1/4-18 1.17 1.13 0.42 259-2081-12-4 3/4 x 1/4 PTR-SS SS5406-12-06 3/4-14 3/8-18 1.17 1.13 0.56 259-2081-12-6 3/4 x 3/8 PTR-SS SS5406-12-08 3/4-14 1/2-14 1.17 1.13 0.70 259-2081-12-8 3/4 x 1/2 PTR-SS SS5406-16-02 1-11 1/2 1/8-27 1.36 1.38 0.33 259-2081-16-2 1 x 1/8 PTR-SS SS5406-16-04 1-11 1/2 1/4-18 1.36 1.38 0.42 259-2081-16-4 1 x 1/4 PTR-SS SS5406-16-06 1-11 1/2 3/8-18 1.36 1.38 0.56 259-2081-16-6 1 x 3/8 PTR-SS SS5406-16-08 1-11 1/2 1/2-14 1.36 1.38 0.70 259-2081-16-8 1 x 1/2 PTR-SS SS5406-16-12 1-11 1/2 3/4-14 1.36 1.38 0.89 259-2081-16-12 1 x 3/4 PTR-SS SS5406-20-04 1 1/4-11 1/2 1/4-18 1.47 1.75 0.42 259-2081-20-4 1 1/4 x 1/4 PTR-SS SS5406-20-06 1 1/4-11 1/2 3/8-18 1.47 1.75 0.56 259-2081-20-6 1 1/4 x 3/8 PTR-SS SS5406-20-08 1 1/4-11 1/2 1/2-14 1.47 1.75 0.70 259-2081-20-8 1 1/4 x 1/2 PTR-SS SS5406-20-12 1 1/4-11 1/2 3/4-14 1.47 1.75 0.89 259-2081-20-12 1 1/4 x 3/4 PTR-SS SS5406-20-16 1 1/4-11 1/2 1-11 1/2 1.47 1.75 1.13 259-2081-20-16 1 1/4 x 1 PTR-SS SS5406-24-04 1 1/2-11 1/2 1/4-18 1.57 2.00 0.42 259-2081-24-4 1 1/2 x 1/4 PTR-SS SS5406-24-06 1 1/2-11 1/2 3/8-18 1.57 2.00 0.56 259-2081-24-6 1 1/2 x 3/8 PTR-SS SS5406-24-08 1 1/2-11 1/2 1/2-14 1.57 2.00 0.70 259-2081-24-8 1 1/2 x 1/2 PTR-SS SS5406-24-12 1 1/2-11 1/2 3/4-14 1.57 2.00 0.89 259-2081-24-12 1 1/2 x 3/4 PTR-SS SS5406-24-16 1 1/2-11 1/2 1-11 1/2 1.57 2.00 1.13 259-2081-24-16 1 1/2 x 1 PTR-SS SS5406-24-20 1 1/2-11 1/2 1 1/4-11 1/2 1.57 2.00 1.47 259-2081-24-20 1 1/2 x 1 1/4 PTR-SS SS5406-32-08 2-11 1/2 1/2-14 1.75 2.50 0.70 259-2081-32-8 2 x 1/2 PTR-SS SS5406-32-12 2-11 1/2 3/4-14 1.75 2.50 0.89 259-2081-32-12 2 x 3/4 PTR-SS SS5406-32-16 2-11 1/2 1-11 1/2 1.75 2.50 1.13 259-2081-32-16 2 x 1 PTR-SS SS5406-32-20 2-11 1/2 1 1/4-11 1/2 1.75 2.50 1.47 259-2081-32-20 2 x 1 1/4 PTR-SS SS5406-32-24 2-11 1/2 1 1/2-11 1/2 1.75 2.50 1.70 259-2081-32-24 2 x 1 1/2 PTR-SS