404 Male Pipe Union Check Part Number TUBE OD A NPTF L5 L7 C D1 D2 404-6-4 UNPL 3/8 1/4-18 0.81 0.140 0.63 0.28 0.379 404-8-6 UNPL 1/2 3/8-18 0.85 0.188 0.81 0.41 0.504 404-8-8 UNPL 1/2 1/2-14 1.10 0.188 0.94 0.41 0.504 404-10-8 UNPL 5/8 1/2-14 1.10 0.218 0.94 0.53 0.631 404-12-8 UNPL 3/4 1/2-14 1.10 0.232 0.94 0.53 0.756 404-12-12 UNPL 3/4 3/4-14 1.10 0.232 1.13 0.61 0.756 404-16-8 UNPL 1 1/2-14 1.12 0.250 1.25 0.53 1.006 404-16-12 UNPL 1 3/4-14 1.25 0.250 1.25 0.72 1.006 404-16-16 UNPL 1 1-11 1/2 1.31 0.250 1.38 0.84 1.006 404-20-16 UNPL 1 1/4 1-11 1/2 1.31 0.250 1.50 0.94 1.256 404-20-20 UNPL 1 1/4 1 1/4-11 1/2 1.41 0.312 1.69 1.08 1.256 404-24-24 UNPL 1 1/2 1 1/2-11 1/2 1.50 0.343 2.00 1.31 1.506 404-32-32 UNPL 2 2-11 1/2 1.78 0.343 2.63 1.78 2.006
