Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 44 17X1 78SL1013A found under O Ring by Le Joint Francais. The National Stock Number assigned to this part is 5331144114069, 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 44 17X1 78SL1013A.