The 71BD30-02-1-AJN is a single-pole 12-position Rotary Switch with adjustable stop and double-poles per deck. The 71 series switch is made up of diallyl per (MIL-M-14) ASTM-D-5948 cover, base and deck separator, thermoplastic rotor mounting plate, silver alloy and beryllium copper rotor contact and gold-plated brass terminals.