Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3B4-000383-01 found under Standoff Threaded S by Technical Services Laboratory Inc. The National Stock Number assigned to this part is 5340011733484, 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 3B4-000383-01.