Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S0X-37SJ 1IN PA found under O Ring by The Walworth Company. The National Stock Number assigned to this part is 5331011367128, 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 S0X-37SJ 1IN PA.