Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DS-20-101D-IT52 found under Screw Cap Hexagon Head by Di Fillippo R A Inc. The National Stock Number assigned to this part is 5305015773948, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DS-20-101D-IT52.