521001, L-gasket, 12" (304.8mm), FKM Elastomer

• Fluorocarbon-based fluoroelastomer (FKM / FPM) material 
• Available in three standard sizes 
• Use with stainless steel Bell Jars and stainless steel Feedthrough Collars 

Material                                          Fluorocarbon-based fluoroelastomer (FKM / FPM) 

Weight                                            .25lb (0.11kg)

Nominal size                                  12" (304.8mm)

Nominal Internal Diameter         11.5" (292.1mm)