Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XS-100-B found under by Sherman And Reilly Inc. The National Stock Number assigned to this part is 3940012101794, and the Federal Supply Class is 3940 Blocks Tackle Rigging And Slings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XS-100-B.