Fractional Tube Socket Weld X NPTF Excel Metal part no. Equivalent Part no. Type 1 ODT-ØT (INCHES) NPT FEMALE PIPE SIZE P Ø E T1 L L1 HEX F 2-WFC-2N SS-2-TSW-7-2 1/8 1/8 0.09 0.29 0.83 0.10 5/8 4-WFC-2N SS-4-TSW-7-2 1/4 1/8 0.18 0.48 1.05 0.28 5/8 4-WFC-4N SS-4-TSW-7-4 1/4 1/4 0.18 0.48 1.18 0.28 3/4 6-WFC-4N SS-6-TSW-7-4 3/8 1/4 0.28 0.60 1.24 0.31 3/4 8-WFC-6N SS-8-TSW-7-6 1/2 3/8 0.40 0.73 1.36 0.38 7/8 8-WFC-8N SS-8-TSW-7-8 1/2 1/2 0.40 0.73 1.59 0.38 1-1/16 10-WFC-8N SS-10-TSW-7-8 5/8 1/2 0.50 0.92 1.65 0.41 1-1/16 12-WFC-12N SS-12-TSW-7-12 3/4 3/4 0.62 1.04 1.73 0.44 1-1/4