Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6374-D-19-1 PC59 found under Locking Device Hand by Tec Design And Manufacturing Inc. The National Stock Number assigned to this part is 4420010336891, 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 6374-D-19-1 PC59.