Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 18030090 ITEM 51 found under Switch Sensitive by Joyce Telectronics Corp. The National Stock Number assigned to this part is 5930016067623, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 18030090 ITEM 51.