Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NAS1201B6B6A found under Chain Assembly Single Leg by Hardware Specialty Co Inc. The National Stock Number assigned to this part is 4010000677039, and the Federal Supply Class is 4010 Chain And Wire Rope. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NAS1201B6B6A.