3a thread class right-hand 1.125" thread length double hexagon extended washer head style 28 thread quantity per inch oxide screw surface treated unrf thread series
Used on paxman diesel engine. screw this nsn is for a part for the paxman diesel engine valenta model part number 16RP200m nsn 2815-99-739-4949 used on navy pc class of ships
Used on mrap buffalo mk2a2. A2a thread class right-hand 1.500" thread length dished hexagon head style 11 thread quantity per inch temperature rating on lockpatch is -65f to +250f chromate zinc surface treated unc thread series