Used on type no. an/frr-3 and 3d. 2b single mounting facility thread class 1.620" overall length 1.530" overall width 32 single mounting facility thread quantity per inch a. fungus proof on coil unc single mounting facility thread series
2a single mounting facility thread class 4.750" overall length 1.000" overall width 32 single mounting facility thread quantity per inch unc single mounting facility thread series
2b single mounting facility thread class 1.125" overall length 1.019" overall width 40 single mounting facility thread quantity per inch double platium silver alloy contacts unc single mounting facility thread series