Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L-T-0030 TY1ST1CLA found under Tab Signal by General Services Administration Inc. The National Stock Number assigned to this part is 7510002643689, 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 L-T-0030 TY1ST1CLA.