2b thread class right-hand 1.609" overall width 32 thread quantity per inch item used to adapt convoluted tubing to mil-c-28748 style rectangular connectors cadmium surface treated hood, side opening w/clamp unc thread series
4.000" overall length 3.625" overall width legen plate reads to stop-break glass; actuator is held in depressed position by glass disc until broken with a hammer
2b single mounting facility thread class 6.570" overall length 2.130" overall width 32 single mounting facility thread quantity per inch tap, square frame unc single mounting facility thread series