BNC Female to N Female adapter, 4 Hole Flange PN: A-NF-BNCF-097
BNC Female to N Female Adapter, DC to 4GHz PN: A-NF-BNCF-014
BNC Female to N Male Precision Adapter PN: P-NM-BNCF-267
BNC Female to N Male RF Adapter PN: A-NM-BNCF-027