2a single mounting facility thread class 0.375" single mounting facility thread length 3.625" overall length 0.875" overall width circular wafer, bushing mount unef single mounting facility thread series
Used on aircraft stratofortress b-52. 3.438" overall length 1.250" overall width extra terminals for coil; coil holds switch in on position unf thread series
2a single mounting facility thread class 1.700" overall length 0.766" overall width 32 single mounting facility thread quantity per inch any acceptable surface treated edged strap, stud mounting open top unc single mounting facility thread series