‹› Image Fuel Delivery Tank Adapter Markets Petroleum Cargo Tanks Jump to Section Product Options Related Products Product Options Hide lower priority columns Part Number All BY4051BZ4051BZ4051SBSS4051Female Thread Size All 4"Height All 3-1/2"2-3/8"1-21/32"Female Thread All NPTNPSMMaterial All BayloyBronze BY4051 4" 3-1/2" NPT Bayloy BZ4051 4" 3-1/2" NPT Bronze BZ4051S 4" 2-3/8" NPSM Bronze BSS4051 4" 1-21/32" NPT Bronze Related Products Image 6200-Series Side-Lever Type Drop Elbow Image 6500-Series Self-Locking Drop Elbow Image API Drop Adapter Image Fuel Delivery Adapter Cap Image Single Point Coaxial Delivery/Vapor Recovery Elbow Image Vapor Recovery Tank Adapter