Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A343T300-101 found under Nut Plain Spline by Telephone Systems Communications. The National Stock Number assigned to this part is 5310002538258, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A343T300-101.