【RAF Electronic Hardware】M0540-4-AL,电路板硬件 - PCB 11mm, 4.3 ID, M4 ROUND METRIC SPACER
M0540-4-B,METRIC ROUND SPACERPLAIN BRASS6M
【RAF Electronic Hardware】M0540-4-N,电路板硬件 - PCB 11mm, 4.3 ID, M4 ROUND METRIC SPACER
M0540-4-S,METRIC ROUND SPACERPLAIN STEEL6M
【RAF Electronic Hardware】M0540-4-SS,电路板硬件 - PCB 11mm, 4.3 ID, M4 ROUND METRIC SPACER
M0540-4-SS-20,METRIC ROUND SPACERPASSIVATE6MM
M0541-35-AL,METRIC ROUND SPACERPLAIN ALUMINU
M0541-35-B,METRIC ROUND SPACERPLAIN BRASS6M