2.5" DMS Billet Aluminum Weld on Bung and Anodized Fill Cap   Description:1 Weld On Bung And Cap.Dimensions: Anodized Color Specifications: Black and Silver Bung Matierial: T-6061 Aluminum Cap Matierial: Aluminum Composite Bung Base Inner Diameter =A: 2-5/16" or 59mm Bung Opening Inner Diameter =B: 2-1/2" or 62mm Bung Base Outer Diameter =C: 3-1/4" or 82mm Bung Opening Outer Diameter =D: 2-7/8" or 72mm Bung Hieght = E: 1-3/8" or 34mm Total Height With Cap: 1-1/2" or 40mm Cap Outer Diameter: 3-5/8" or 91mm Thread Pitch: 12NPT