Connector cord provides superior strength and corrosion resistance for industrial and military applications. They are machined from 300 series stainless steel and come in 1/4 inch through 1 inch, NPT hub size. Made of stainless steel. Straight male cord connector body style. 1 inch NPT hub. -34 to 107°C operating temperature. 1.36 to 1.41 inch recommended knockout hole size. Suitable for use in hazardous locations per class I division 2, class II division 1 and 2, class III division 1 and 2 NEC reference 501-4 (b), 502-4 (a), 502-4 (b), 503-3 (a) and 503-3 (b).