Used on an/usc-65(v)1-lightweight multiband satellite terminal (lmst)-nsn 5895-01-495-9105. o-ring actual o-ring dimensions=w.118+/-.004; ID2.090+/-.018; tube od min. 1.750; thread t per mil-s-8879=2.2500-12unjf-3b; dia +.015-.000=2.425; full thd depth=0.877; dia=1.547; dia +.015 -.000=0.125; dia min=2.602; min=1.368