Used on M551. 3.880" overall length 3.880" overall width pmtg holes 2.000 apart centered ontongues 0.880 w 1.240 apart; cross-sectional aperture 3.500 x 3.500 through; connector accommodation 2.310 dia w/4 holes 0.148 dia equally spaced on 2.625 dia bolt circle; color white enamel surface treated irregular
2b thread class right-hand 2.610" overall length 0.390" overall width 56 thread quantity per inch bracket 0.190 in. thk; 2 mtg holes each end 0.220 in. deep, 0.200 in. cto c, 0.095 in. center to edge; 4 holes 0.190 in. deep located 0.710 in. from end chromate surface treated irregular unc thread series
2.530" overall length 1.840" overall width inside cutout 1.070 in o/a lg, 1.400 in o/a height with arc at top 0.330 in high passivate surface treated irregular
6.000" overall length 3.375" overall width two mounting holes are 0.406 in. diameter, four mounting holes are 0.281 in. diameter; knockout hole is 1.875 in. diameter irregular