Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 55D6481-20 found under Static Line Personnel Parachute by San Antonio Air Logistics Center. The National Stock Number assigned to this part is 1670009257843, and the Federal Supply Class is 1670 Parachutes Aerial Pick Up Delivery Recovery Systems And Cargo Tie Down Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 55D6481-20.