Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5MD1-22D4-UN found under Cable Special Purpose Electrical by Boeing Company The. The National Stock Number assigned to this part is 6145014748130, and the Federal Supply Class is 6145 Wire And Cable Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5MD1-22D4-UN.