Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9P000241 PIECE 2 found under O Ring by Sterling Hydraulics Inc. The National Stock Number assigned to this part is 5331013559911, 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 9P000241 PIECE 2.