Common replacement parts for the 331 and 341 series
Be sure to verify the Version of your instrument some parts are not interchangable.
SE30-277 AC Adaptor for the 331C and 341C, (AC Adaptors for "C" versions are higher voltage and are not interchangable with earlier versions)
SE30-45 AC Adaptor for the 331/341
SE15-19 NI-Cadmium Battery - AA (Qt. 4) 331/341
SE15-43 Nickel-metal hydride battery pack for the 331C and 341C
301-27 Calibration Wedge (Calibration film strip used to check calibration and set "slope")
319-40-01 1 mm Aperature
319-40-02 2 mm Aperature
319-40-03 3mm Aperture (341 only)
331-29 Lamp Assembly for the 331 units with serial numbers below 100000
331-129 Lamp Assembly for the 331 units with Serial Numbers Higher than 100000
341-37 Lamp Assembly for the 341
341C-137 Lamp Assembly for the 341C
331C-129 Lamp Assembly for the 331C
331-32 Battery Holder Assembly for the 331/341 (not needed with the "C" version)