2a single mounting facility thread class 0.250" single mounting facility thread length 1.031" overall length tap, circular, bushing mount unef single mounting facility thread series
0.250" single mounting facility thread length 10 dummy terminals on front of section 2 no contacts rear on section 2 circular wafer, bushing mount unef single mounting facility thread series
2b second mounting facility thread class right-hand second mounting facility 3.250" overall length 3.090" overall width 32 second mounting facility thread quantity per inch unc second mounting facility thread series
3.340" overall length 0.240" overall width left side d-shaped guide socket rotated 270 deg, right side d-shaped guide pin rotated 180 deg clockwise from normal
2b thread class right-hand 1.737" overall length 1.312" overall width 18 thread quantity per inch cadmium surface treated angle type w/clamp un thread series