Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 30900-1 found under Clamp Synchro by Gap Instrument Corp. The National Stock Number assigned to this part is 5340000203126, 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 30900-1.