Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6AR3R-7 found under Caster Rigid by Stewart Warner Corp. The National Stock Number assigned to this part is 5340012270766, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6AR3R-7.