M0549-3-N,6MM RD X 20MM X 3.2MM ID
M0549-3-S,METRIC ROUND SPACERPLAIN STEEL6M
M0549-3-S-12,METRIC ROUND SPACERCLEAR ZINC6MM
M0549-3-SS,METRIC ROUND SPACERPLAIN STAINLE
M0549-4-AL,METRIC ROUND SPACERPLAIN ALUMINU
M0549-4-AL-7,METRIC ROUND SPACERCLEAR IRIDITE
M0549-4-B,METRIC ROUND SPACERPLAIN BRASS6M
M0549-4-N,METRIC ROUND SPACERNO FINISH - N