Rockwell hardness c scale 26-32
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 6645-01-409-2003
NSN 5925-01-440-7571
NSN 5960-01-065-5332
NSN 5965-01-461-2850
NSN 5915-00-654-5794
NSN 6150-01-261-3036
NSN 5965-01-328-7979
NSN 5905-01-526-9617
NSN 5855-00-014-5008
NSN 5975-01-650-1550
NSN 6110-01-504-8173
NSN 7035-01-403-2841