In head drilled and tapped 0.125-27n.P.T. Thread size
A pipe fitting primarily designed for permanent installation during piping systems operations to fit into another pipe or pipe fitting for sealing. It usually is threaded.
NSN 6650-00-451-8174
NSN 6320-01-359-3921
NSN 5965-00-064-8209
NSN 6610-01-148-8865
NSN 6650-01-437-6279
NSN 6685-01-566-3309
NSN 5835-01-518-4300
NSN 5915-00-926-2471
NSN 5895-01-044-6369
NSN 5930-01-142-1809
NSN 6620-00-342-0751
NSN 6220-00-340-1313