Shopping Cart (0) Quotes (0) Express Ordering All Categories > Piping > Air-Pro® HDPE Compressed Air Piping System > Socket Male National Pipe Thread (MNPT) Adapter Fittings > Advanced Search Advanced Search in Socket Male National Pipe Thread (MNPT) Adapter Fittings Unit of Measure Imperial Metric Both Specifications Size (in) No Preference 1 1/2 1-1/2 1-1/4 2 3/4 Size (mm) No Preference 20 25 32 40 50 63 Dimensions Dimension L (in) No Preference 2.244 2.402 2.598 2.795 3.031 3.268 Dimension s (in) No Preference 0.591 0.669 0.709 0.827 0.945 1.083 Dimension k (in) 1.043 1.102 1.142 1.181 Dimension t (in) No Preference 0.610 0.669 0.709 0.827 0.945 1.083 Clear Cancel Advanced Search