NEW HUGE LOT 100's 

ISI MDC Miniature Insulator Seal Vacuum Ceramic ? 

 # 9951001 

This is awesome. Not sure what this is for, but you should know. There are 7 packs here. 6 are 9951001 and one 951000 These should be ceramic, but may be plastic. THey are very hard!!  

FREE USA SHIP

NEW HUGE LOT 100's  ISI MDC Miniature Insulator Seal Vacuum Ceramic ?   # 9951001  This is awesome. Not sure what this is for, but you should know. There are 7 packs here. 6 are 9951001 and one 951000 These should be ceramic, but may be plastic. THey are very hard!!   FREE USA SHIP