Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TA648-50R-LT found under Sight Lead Computing Automatic by Trijicon Inc. The National Stock Number assigned to this part is 1220015865218, 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 TA648-50R-LT.