Used on 1730-01-295-0762 air force weapon system ed support equipment c-17a aircraft. 2a 1st end thread class 12 1st end thread quantity per inch nptf 2nd end thread series
Used on 4920-01-389-0602; engine, aircraft, f100-pw-100 (f-15a/b/c/d). 3a 1st end thread class pipe end has 32 threads per inch nptf 2nd end thread series