Used on allis-chalmers model 645 scoop loader multi purpose bucket with 2 1/2 cubic yd. multiple purpose bucket; nsn 2320-01-097-0260 hemtt (heavy expanded mobility tactical truck). 2a 1st end thread class 20 1st end thread quantity per inch nptf 2nd end thread series
2a 1st end thread class as differentiated by fitting processed dry for use w/high pressure lines; grumman corp, a-10 aircraft nptf 2nd end thread series
Used on b-52, b-1, aircraft support equipment. spruance class dd (963), forrestal class cv, nimitz class cvn. cryogenic systems. mx peacekeeper missle support equipment. f100-pw-100 (f-15 a/b/c/d).. 3a 1st end thread class weapon system essential npt 2nd end thread series
