SSMA series connectors with characteristic impedance 50Ù are used for millimeter waveapplications, connecting with RF cables or micro strips. The operating frequency limit is up to 35GHz. The coupling thread is 10-36 UNS thread.This sectional specification provides information and rules for preparation of detailspecification of SSMA series R.F connectors together with the pro forma blank detailspecification.It also prescribes mating face dimensions for grade 1 high performance connectors,dimensional detail of grade 0 standard test connectors, gauging information and testsselected from QC 220000(IEC 61169-1) applicable to all detail specifications relating t