1905-2520-AL,ROUND STANDOFFPLAIN ALUMINUM1/2
1905-2520-B,ROUND STANDOFFPLAIN BRASS1/2 RD
1905-2520-N,ROUND STANDOFFNO FINISH - NYLON1
1905-2520-PH,ROUND STANDOFFNO FINISH - PHENOL
1905-2520-S,ROUND STANDOFFPLAIN STEEL1/2 RD
1905-2520-S-43,ROUND STANDOFFBLUE ZINC1/2 RD X
1905-2520-SS,ROUND STANDOFFPLAIN STAINLESS ST
1905274-1,光纤（线缆组件） C/A FO LC ylw SC 50
