Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 343-2033 PARTS KIT B2 found under Parts Kit Light Surgical Field by Barnstead Thermolyne Corporation. The National Stock Number assigned to this part is 6545013586916, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 343-2033 PARTS KIT B2.