Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 747 DYNA-JET found under Tester Tube by B And K Precision Corporation. The National Stock Number assigned to this part is 6625010881784, 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 747 DYNA-JET.